shortwaveradio.ch - en

9r-59ds

Anonymous (anonymous@undisclosed.example.com) — 2025-01-19T21:18:40+00:00

Trio 9R-59DS Manufactured by Trio - Kenwood Co. As successor of the Trio 9R-59 - shortwave receiver, the Japanese company Trio Corp. introduced the 9R-59DE resp. 9R-59DS in 1968. This early „all wave receiver“ from Japanese production was a reliable performer especially in the medium wave range, it's band spread dial limited the useability to the amateur radio bands and soon got a good reputation among medium wave specialists due to its price-performance ratio.

51j-4_-_revision

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T18:29:09+00:00

Collins 51J-4 S/N 1601 Manufactured by Collins Radio Comp., Cedar Rapids. I got my Collins 51J-4 S/N 1601 from Walter K., it had been unused for years and stored in a dry warehouse. The receiver had been used by Swiss PTT, which is indicated by a sticker. The set is wired for 220 V operation, years ago a modification was made by installing a switch for the loudspeaker in place of the loudspeaker socket.

51j-4

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T18:17:52+00:00

Shortwave Receiver Collins 51J-4 Shortwave Receiver Collins 51J-4; manufactured by Collins Radio Company, Cedar Rapids, USA. After WWII, Collins presented their first all wave receiver covering all frequencies from mediumwaves to 30,5 kHz shortwaves, the 51J - after a short time in 1949, the 51J-1 appeared and was built in small production numbers. After major technical improvements, the 51J-3 was built in larger quantities, it's military tropicalised version got the designation R-388. Only th…

51s-1

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T19:57:15+00:00

Collins 51 S - 1 Manufactured by Collins Radio Comp., Cedar Rapids. In the late 1950s, Collins began developing sets for the amateur radio market that fit on the desk of a shortwave listener and which had a civilian appearance. Not everyone is comfortable placing a Collins R-390A on his desk or in their living room.

1340

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T15:55:34+00:00

Maritime Receiver type 1340.21 Manufactured by RFT / VEB Funkwerk Köpenick, VEB Kombinat Nachrichtenelektronik, Köpenick; developed at Funkwerk Dabendorf. In the early 1960s, Funkwerk Dabendorf and later Köpenick developed a series of maritime receivers to equip ship and coastal radio stations and other fixed radio services, they all carried a designation number 1340 followed by a suffix.

a1

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:04:42+00:00

a2

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T09:29:42+00:00

a3

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T08:12:20+00:00

a3j

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T18:25:11+00:00

abschwaecher

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T09:11:45+00:00

Attenuator (ATT) At high signal levels coming from the antenna, overloading can occur. A poorly dimensioned RF preamplifier can be completely overloaded or mirror frequencies occur at a distance of the double intermediate frequency, i.e. a station falsely appears a second time on the dial and can even mask a weak desired signal.

accumulator_batteries

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:34:59+00:00

aeronautical_communication

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T18:27:30+00:00

Aeronautical radio communication After the Second World War, was moved from the shortwave band to the VHF band. Nowadays, it is the only radio service that uses amplitude modulation in this band. For radiotelephony, the frequency range 118 - 137 MHz is used, originally in 50 kHz (360 possible channels), then in 25 kHz (720 channels) and today in 8.33 kHz channel spacing (2160 channels), so that the number of available frequencies could be multiplied.

afc

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T10:31:33+00:00

AFC (Automatic Frequency Control) In FM mode, a shift in the operation frequency results in a signal no longer being fed to the centre of the IF filter and to the demodulator stage. Many superior receivers, are equipped with a control circuit (AFC) which, in the event of receiver drift or inaccurate tuning, corrects the operation frequency by applying a control voltage and brings the signal to the centre of the IF filter and thus optimises the demodulation.

agc

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T07:24:08+00:00

AGC AGC or Automatic Gain Control is the term used to describe the function of automatic control of the radio-frequency gain. In superior shortwave receivers, the signal is decoupled in front of the demodulator stage and used to control the gain of the RF preamplifiers via a signal amplifier (in some cases, this control voltage is also used to control the

air_band

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T18:15:51+00:00

AIR Band or VHF aeronautical communications band After the Second World War, aeronautical communication was transferred from the shortwave to the VHF range. It is the only radio service that uses amplitude modulation in this band. For radiotelephony, the frequency range 118 - 137 MHz is used, originally in the 50 kHz, then in the 25 kHz and today in the 8.33 kHz channel spacing, so that the number of available frequencies could be multiplied.

air-7

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T18:14:12+00:00

Sony AIR-7 Manufactured by Sony, Tokyo. A set with a „totally different“ design is the Sony AIR-7, a receiver covering the VHF aeronautical communications band with the „look“ of a walkie-talkie, released in 1985. * AIR-7: AM 150 - 2194 kHz, VHF 76-108

air-8

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T18:40:03+00:00

Sony AIR-8 Manufactured by Sony, Tokyo. A set with a „totally different“ design is the Sony AIR-8, a receiver covering the VHF aeronautical communications band with the „look“ of a walkie-talkie, released in 1985. * AIR-7: AM 150 - 2194 kHz, VHF 76-108

akku_batteriebetrieb

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:37:36+00:00

Accumulator / battery operation In the early days of wirfeless communication, accumulators and batteries were almost the only usable power source, especially when a set was to be used outside a house. Older tube equipped receivers are powered by heater accumulators

al-990

Anonymous (anonymous@undisclosed.example.com) — 2022-08-20T17:50:41+00:00

Philips AL-990 Manufactured by Philips, Eindhoven. Around 1982, Philips presented the AL-990 as Philips' first tabletop receiver equipped with a digital frequency display. Similar to the RF-2200 from Panasonic, the set had a rotatable ferrite antenna, that could be used for direction findung to locate a long or medium wave transmitter. For the short wave ranges a loop antenna could also be attached. Similar elaborate antenna designs can be found on several portable receivers in the late sevent…

am

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T06:52:09+00:00

amplitude_modulation

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T18:24:18+00:00

Amplitude modulation For radio reception on medium and longwave and also in the telephony mode of early military radios, amplitude modulation is used. These can be demodulated with simple receivers, starting from detector sets to complex superhet receivers, without the need for a

an_art-13

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T07:58:20+00:00

AN/ART-13 Transmitter AN/ART-13 or T-47; manufactured by Collins. The aeronautical radio transmitter ATC developed by Collins around 1940 was a common transmitter in American aircraft, the improved version AN/ART-13 became the standard transmitter in American aircraft; modified versions were also used in civil aviation (especially after the war) and in vehicles.

an_grc-3

Anonymous (anonymous@undisclosed.example.com) — 2024-09-27T20:09:44+00:00

AN/GRC-3 radio family - 8 Manufactured by various U.S. manufacturers. Technical data * Principle: transceiver, IF 4.45 - 5.45 MHz / 1.4 MHz * Operation modes: FM (F3) * Frequency range: SW / VHF * Frequency display: Analogue dial * Frequency memory: 80 channels, 100 kHz channel spacing; two mechanical presets * Signal strength indicator: S-meter * Signal processing: * Features:

an_grc-19

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T08:11:05+00:00

AN/GRC-19 : T-195 / R-392 Radio station consisting of transmitter T-195 and receiver R-392, developed by Collins, produced by various manufacturers, including Collins, Stromberg-Carlson, Stewart-Warner. To replace the medium-power radio stations from the Second World War, the stations SCR-299 or

an_grc-26

Anonymous (anonymous@undisclosed.example.com) — 2024-09-27T20:22:39+00:00

AN/GRC-26 radio teletype system Produced by various U.S. manufacturers. The high-performance AN/GRC-26 radio teletype station was used by the U.S. Army in different configurations and was also used by the German Armed Forces after 1956. In addition to a transmitter, the station equipment included two receivers and two teleprinters with the necessary accessories, which were usually housed in a shelter on a lorry.

an_prc-8

Anonymous (anonymous@undisclosed.example.com) — 2024-09-27T19:50:21+00:00

Manpack radios AN/PRC-8 - 10 Produced by different U.S. manufacturers. As a successor to the famous first „walkie talkie“ BC-611 and the „NATO banana“ AN/PRC-6, the American manpack radio AN/PRC-8 - 10 was also introduced to the newly formed German armed forces in 1956.

an_prc-47

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T08:08:15+00:00

AN/PRC-47 AN/PRC-47 resp. RT-671, manufactured by Collins, licence production Bendix. The AN/PRC-47 radio is a medium-power transceiver with frequency synthesis that was primarily used by Special Forces. The set was first widely used in the Vietnam War. [Collins AN/PRC-47] Technical data

an_vrc-46

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T17:59:45+00:00

AN/VRC-46 AN/VRC-46; basic set of the AN/VRC-12 family, Swiss Army designation SE-412; manufactured by Associated Industries. In the United States, the VRC-12/VRC-46 VHF communication system was introduced in the mid-1960s. The RT-524A was designed for direct operation and the similarly sized RT-246, with ten memory channels, was designed to be installed in equipment bays of tanks or similar vehicles, with the possibility of remote control.

aor

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T17:44:48+00:00

AOR Ltd, Tokyo The Japanese company AOR was originally known for its scanner receivers, but they launched some remarkable shortwave receivers in the nineties. Company history The Japanese radio amateurs Takano (JA1AOR) and Oshima (JA1EXM) founded the company AOR Ltd in 1977. The breakthrough was in 1984 with the introduction of the wideband scanner AR2001. At the end of the 1980s, the company launched the AR2515 and AR3000(A) scanner receivers in a console tabletop cabinet, which covered the…

ar2000

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T18:05:07+00:00

AR2000 Handheld scanner AR2000, manufactured by AOR. The handheld scanner AOR AR2000 was introduced around 1991, it covers the range of 500 kHz - 1300 MHz in 5 kHz steps and has 1000 memory channels. [AOR AR2000] Technical data * Principle: single conversion superhet * Operation modes: AM (A3), FM (F3) wide and narrow *

ar3030

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T17:48:02+00:00

AOR AR3030 Manufactured by AOR, Tokyo. The first pure shortwave receiver manufactured by AOR was the AR3030, which was launched in 1994. In terms of operation, it was reminiscent of scanner receivers. [AOR AR3030] Technical data * Principle: Double conversion, IF 45 MHz, 455 kHz * Operation modes:

ar5000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T17:51:00+00:00

AOR AR5000 Manufactured by AOR, Tokyo. [AOR AR5000] Technical data * Principle: Triple conversion superhet, IF 622.2 MHz, 10.7 MHz, 455 kHz * Operation modes: A1, USB/LSB, AM (A3), FM (F3) * Frequency range: 10 kHz - 2'600 MHz * Frequency display: digital display, resolution 10 Hz * Frequency memories: 1000 memories, alphanumeric * Signal strength indicator: S-meter * Signal processing: RF gain, attenuator, noise blanker * Features: RS232 interface * Sensitivity: SSB < 0.5 …

ar7030

Anonymous (anonymous@undisclosed.example.com) — 2022-11-25T19:44:03+00:00

AR7030 Manufactured by AOR Ltd., Tokyo. At the beginning of 1996, AOR introduced the AR7030: this receiver quickly caused a sensation despite its inconspicuous appearance - some critics were enthusiastic, others found its operation scheme useless... The set was designed by John Thorpe, who had previously developed the receivers of the English company

ats-303

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T19:06:13+00:00

Sangean ATS-303 Manufactured by Sangean, Taiwan. Sangean launched the simple digital world band receiver in 1995 after Siemens withdrew from selling domestic sets. Technical data * Principle: single conversion superhet, IF 455 kHz / FM 10.7 MHz * Operation modes: AM (A3), FM (F3) * Frequency range: FM, LW, MW, 2 x SW (2.3 - 7.3 / 9.5 - 26.1

ats-801

Anonymous (anonymous@undisclosed.example.com) — 2021-04-19T20:25:35+00:00

Sangean ATS-801 Manufactured by Sangean, Taiwan. The Sangean ATS-801 is a simple, low-cost, pocket-sized world band receiver with PLL frequency synthesizer, digital frequency display and several memories; the set was sold by electronics discounters under various brands.

ats-803

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T19:39:46+00:00

Sangean ATS-803 Manufactured by Sangean, Taiwan. In 1985, Sangean presented a microprocessor controlled receiver which had some resemblance with the Sony ICF-2001: the Sangean ATS-803 with its PLL frequency synthesizer reliable travel radio that was sold by discounters under various company names at an affordable price.

ats-803a

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T18:29:53+00:00

Sangean ATS-803 Manufactured by Sangean, Taiwan. The Sangean ATS-803 with its PLL frequency synthesizer was introduced 1989 in a revised version with two switchable IF bandwidths and improved dynamic range. This version can be recognised from the WIDE / NARROW switching option as a secondary function of the stereo switch in the lower right corner of the front panel.

ats-808

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T19:02:35+00:00

Sangean ATS-808 Manufactured by Sangean, Taiwan. The world band receiver ATS-808, a microprocessor controlled travel radio with digital PLL frequency synthesis, was introduced around 1990 and was also sold as Siemens RK 661 or under the Uher brand. [Sangean ATS-808] Technical data

ats-818

Anonymous (anonymous@undisclosed.example.com) — 2021-04-21T18:11:29+00:00

Sangean ATS-818 Manufactured by Sangean, Taiwan. More popular than the travel radio ATS-818 was its sister model ATS-818CS, which came with a built-in cassette recorder. [Sangean ATS-818] Technical data * Principle: Double conversion superhet, IF 49.995 MHz / 450 kHz / FM 10.7 MHz * Operation modes: A1 with BFO, AM (A3), FM (F3) * Frequency range: FM, LW, MW, SW (150 kHz - 30

ats-818cs

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T18:53:52+00:00

Sangean ATS-818 Manufactured by Sangean, Taiwan. More popular than the travel radio ATS-818 was its sister model ATS-818CS, which was came with a built-in cassette recorder. [Sangean ATS-818CS as Siemens RK 670] Technical data * Principle: Double conversion superhet, IF 49.995 MHz / 450 kHz / FM 10.7 MHz * Operation modes: A1 with BFO, AM (A3), FM (F3) * Frequency range: FM, LW, MW, SW (150 kHz - 30

ats-909

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T19:21:08+00:00

Sangean ATS-909 Manufactured by Sangean, Taiwan. In 1996, Sangean presented an exceptionally sucessful receiver: the ATS-909. The pocketbook-sized receiver does everything a traveller expects from a travel radio at a good price-performance ratio. The successor of the set, the

attenuator

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T09:12:08+00:00

ausstattung

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:55:31+00:00

autophon

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T06:22:41+00:00

Autophon AG, Solothurn [Autophon Logo] The Autophon Company in Solothurn war one of the major producers of military communication equipment as well as comsumer radios from 1940 - 1960; then their activities turned over to wireless telephony and Autophon became one of the founder partners of

barlow_wadley_portabelempfaenger

Anonymous (anonymous@undisclosed.example.com) — 2021-04-03T19:55:04+00:00

Barlow Wadley Portable Receivers Dr. T. L. Wadley, who had developed the famous RA-17 shortwave receiver for the british company Racal, moved to his native South Africa after his retirement and developed a travel receiver based on the Wadley loop circuit, which was manufactured by the South African conglomerate Barlow's Television Co.

batteries

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:38:09+00:00

bc-222

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T17:18:14+00:00

Radio Receiver & Transmitter BC-222 Part of the SCR-194 radio system, manufactured for the United States Army Signal Corps. Technical data * Principle: transceiver, manpack * Operation modes: AM (A3) * Frequency range: VHF 27.7 - 52.2 MHz (channel spacing 400 kHz) * Frequency display: analogue dial * Frequency memory: none * Signal strength indicator: none * Signal processing:

bc-224

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T17:21:52+00:00

Radio Receiver BC-224 Developed by RCA, manufactured for the U.S. Signal Corps by various manufacturers. The aircraft receiver developed by RCA (Radio Corporation of America) was manufactured with various frequency coverages and operating voltages and was the predecessor of the well-known

bc-312

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T17:45:33+00:00

Radio Receiver BC-312 Developed by the Signal Corps Laboratories, Fort Monmouth, New Jersey; manufactured for the U.S. Signal Corps by various manufacturers. The BC-312 receiver was built under licence for the US Signal Corps by various manufacturers during the Second World War and was used as a tabletop receiver in various radio stations.

bc-314

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T17:35:18+00:00

Radio Receiver BC-314 Produced for the U.S. Signal Corps by various manufacturers. The BC-314 is a VLF variant of the BC-224 receiver, it covers the long- und mediumwave range from 150 - 1500 kHz in four bands. Technical data * Principle: single conversion superhet, IF 92.5 kHz * Operation modes: A1 with BFO,

bc-322

Anonymous (anonymous@undisclosed.example.com) — 2024-08-04T07:12:05+00:00

Radio Receiver & Transmitter BC-322 Part of the SCR-195 radio system, manufactured for the United States Army Signal Corps. [Transceiver BC-322] Technical data * Principle: transceiver, manpack * Operation modes: AM (A3) * Frequency range: VHF 52 - 66 MHz * Frequency display: analogue dial * Frequency memory: none * Signal strength indicator: S-meter * Signal processing: * Features: * Sensitivity AM approx. 10 μV *

bc-342

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T17:44:57+00:00

Radio Receiver BC-342 Developed by the Signal Corps Laboratories Fort Monmouth, New Jersey; manufactured for the U.S. Signal Corps by various manufacturers. The BC-342 receiver was built under licence by various manufacturers for the US Signal Corps during the Second World War and was used as a station receiver in various radio stations.

bc-344

Anonymous (anonymous@undisclosed.example.com) — 2024-08-04T07:14:34+00:00

Radio Receiver BC-344 Produced for the U.S. Signal Corps by various manufacturers. A VLF version of the BC-224 appeared with the BC-314, which covers the range from 150 - 1500 kHz in four bands; the BC-344 is a (U.S.) mains power variant of this receiver. Technical data

bc-348

Anonymous (anonymous@undisclosed.example.com) — 2024-08-04T07:36:11+00:00

Radio Receiver BC-348 Developed by the U.S. Signal Corps Laboratories in Fort Monmouth, produced by various U.S. manufacturers under so-called contracts. The BC-348 receiver was built under licence by various manufacturers for the U.S. Signal Corps during the Second World War and was one of the most popular receivers used in American bombers during the Second World War. In Switzerland, it was used in the

bearcat

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T07:33:11+00:00

Bearcat, Electra Company, Cumberland, IN Bearcat is the brand name used for a number of scanner receivers and shortwave receivers produced by the Japanese company Uniden.

betriebsarten

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T09:31:47+00:00

Reception modes There are several possibilities to add information to a bare RF signal. In the early days of wireless communication, Morse code was transmitted by simple on-off keying of a signal, later in the 1930s, radio telephony was introduced. Spoken information and tones were modulated onto a carrier signal.

bfo

Anonymous (anonymous@undisclosed.example.com) — 2021-04-19T19:22:26+00:00

BFO (Beat Frequency Oscillator) For the reception of unmodulated Morse code signals (in the early days of wireless telegraphy this was called „unmodulated telegraphy“ or still today „continuous wave“), an additional oscillator signal must be mixed with the unmodulated signals so they can be heard in the headphones.

blaupunkt_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-04-03T19:56:01+00:00

Blaupunkt Portable receivers With the Blaupunkt Supernova, the Hildesheim based company Blaupunkt was present in 1968 with a veritable world receiver in a market segment that was in Germany dominated by the radios of Grundig, Nordmende, Schaub-ITT and also the Japanese competitors. Portable receivers by Blaupunkt

blaupunkt

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T09:26:19+00:00

Blaupunkt [Blaupunkt] With the Blaupunkt Supernova, the Hildesheim company Blaupunkt was present in 1968 with a veritable world band radio in a receiver segment that was dominated in Germany by sets from Grundig, Nordmende, Schaub-ITT and also Japanese manufacturers. Company history The company

boatanchors_sowjetunion

Anonymous (anonymous@undisclosed.example.com) — 2021-04-13T11:51:43+00:00

Boatanchors from the Soviet Union Various boatanchors were made in the Soviet Union by different manufacturers, some of whom are not even known by name, and some of these found their way to the West after the „Wende“. Several of these sets were for sale from Eastern European vendors at the Ham Radio Fair in Friedrichshafen.

boatanchors_von_autophon

Anonymous (anonymous@undisclosed.example.com) — 2021-04-07T09:32:57+00:00

Tube-equipped receivers from Autophon The Swiss company Autophon was founded in Solothurn in 1922 as a manufacturer for equipment for automated telephony. In 1931, LF telephone broadcast receivers were added to the product range, radio receivers were initially manufactured under

boatanchors_von_collins

Anonymous (anonymous@undisclosed.example.com) — 2021-04-07T09:41:49+00:00

Tube-equipped receivers from Collins [Collins Logo] In 1932, radio amateur Arthur A. Collins founded his own company Collins Radio Company in Cedar Rapids, initially manufacturing amateur radio transmitters. In the following years, Collins got an excellent reputation in the commercial and, above all, aeronautical communications sector. Based on the receivers and transmitters manufactured during the Second World War, amateur radio receivers (the 75-A series) were first available from

boatanchors_von_drake

Anonymous (anonymous@undisclosed.example.com) — 2021-04-07T09:57:33+00:00

Tube-equipped receivers by R. L. Drake Robert Lloyd Drake founded the R.L.Drake Company in 1943, initially amateur radio accessories were manufactured. After moving to Miamisburg OH, the receiver 1-A was introduced in 1957 as the first Drake shortwave receiver to cover all amateur radio bands in a very compact design. Around 1960 - 1966, further receivers followed, like the

boatanchors_von_eddystone

Anonymous (anonymous@undisclosed.example.com) — 2021-04-07T10:02:47+00:00

Communications receivers from Eddystone After 1926, Stratton & Co. Ltd, Birmingham, manufactured radio sets and later shortwave receivers under the trade name Eddystone. During World War II, after the almost complete destruction of the production plants in Bromsgrove by the

boatanchors_von_hallicrafters

Anonymous (anonymous@undisclosed.example.com) — 2021-04-08T19:09:11+00:00

Tube equipped receivers of Hallicrafters Hallicrafters After the bankruptcy of the initial Silver - Marshall Manufacturing Co. of Chicago, the company was taken over by radio engineer Bill Halligan in 1934, a new company emerged which was almost entirely devoted to the construction of communications receivers,

boatanchors_von_hammarlund

Anonymous (anonymous@undisclosed.example.com) — 2021-04-08T20:17:25+00:00

Tube equipped receivers of Hammarlund Hammarlund Similar to other American manufacturers, Hammarlund was initially founded to manufacture components necessary for the construction of a radio receiver. It was not until 1931 that the first complete receiver, the

boatanchors_von_lorenz

Anonymous (anonymous@undisclosed.example.com) — 2022-11-19T22:03:23+00:00

Tube equipped receivers of C. Lorenz AG Lorenz or Conrad Lorenz AG, Berlin Tempelhof. Lorenz or C. Lorenz AG was a major manufacturer of military communications equipment for the Wehrmacht in Berlin and continued to produce commercial equipment and especially broadcasting technology in the post-war period, the company merged with Standard Elektrik into

boatanchors_von_murphy

Anonymous (anonymous@undisclosed.example.com) — 2021-04-09T11:19:40+00:00

Tube equipped receivers from Murphy Radio Welwyn Garden City, Hertfordsh, England. [Murphy Logo] In 1929, the English company Murphy Radio was founded by Frank Murphy and E. J. Power. The company quickly developed into an important manufacturer of home radios with 2000 employees at last count, F. Murphy turning his back on the business in 1937.

boatanchors_von_national

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T18:54:22+00:00

Tube equipped receivers of the National Company Inc. The former „National Toy Company“ renamed to become National Company Inc. in 1916, produced radio components for the „Browning - Drake broadcast receiver kit“ and „Velvet vernier“ dial drives from 1924.

boatanchors_von_philips

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T18:57:36+00:00

Tube equipped receivers from Philips Philips or Philips' Gloeilampenfabrieken, Eindhoven. The Philips incandescent lamp factory, founded in 1891 by Frederik Philips, began producing electron tubes in 1917. Philips started producing complete home radios and became one of the most important radio manufacturers in the world by the mid-1930s; later, some commercial receivers, measuring and workshop equipment, etc. were added to the production range.

boatanchors_von_plessey

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T19:04:00+00:00

Communication receivers from Plessey The Plessey Company was founded in Marylebone, London, in 1917. In addition to electronic components, the company manufactured detector receivers and telephones for Marconi, and from 1929 Plessey also manufactured equipment for the television pioneer Baird.

boatanchors_von_racal

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T19:09:40+00:00

Racal Engineering Ltd. tube equipped receivers Racal Ltd. was founded in 1950 by Ray Brown and George Calder Cunningham, former Plessey employees. The company name is derived from the first names of the founders: RAy - CALder. With the commercial shortwave receiver

boatanchors_von_rca

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T19:11:50+00:00

Tube equipped receivers from RCA (Radio Corporation of America) The Radio Corporation of America was an electronics corporation founded after World War I and a major manufacturer of commercial and military transmission equipment, electron tubes and consumer electronics.

boatanchors_von_rohde_schwarz

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T19:59:49+00:00

Tube equipped receivers from Rohde & Schwarz The Munich-based company Rohde & Schwarz is one of the very big manufacturers of communications equipment and has an excellent reputation in the field of aircraft radio as well as in the development of VHF broadcasting equipment.

boatanchors_von_siemens

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T20:08:26+00:00

Tube equipped receivers from Siemens Since the late 19th century, the German company Siemens has been active in all areas of electricity and telecommunications. The company was founded in 1847 as Telegraphen-Bau-Anstalt Siemens & Halske and was already active in the early days of radio technology in the construction of transmitters, receivers and also in tube production. Radio production came to a standstill with the destruction of the Siemens factories in Berlin and Arnstadt due to World War I…

boatanchors_von_telefunken

Anonymous (anonymous@undisclosed.example.com) — 2021-04-13T11:42:44+00:00

Tube equipped receivers from Telefunken Competing development groups from AEG and Siemens Halske joined forces in 1903 to form the „Gesellschaft für drahtlose Telegraphie mbH“, which later became Telefunken. Telefunken quickly got a reputation with the construction of the transmitter site of Norddeich Radio in 1905 and Nauen in 1906. Afte a few years, Telefunken widely known not only because of its production of receiving and transmitting equipment, but also because of their domestic radios, re…

boatanchors_von_watkins_johnson

Anonymous (anonymous@undisclosed.example.com) — 2021-04-13T11:46:25+00:00

Boatanchors by Watkins - Johnson The Watkins-Johnson Company was founded in 1957 in Palo Alto, CA; from 1966 onwards it was known as the Watkins-Johnson Company Telecommunications Group in Gaithersburg, MA, manufacturing communications equipment primarily for military and intelligence agencies; at last 450 people were employed.

boatanchors

Anonymous (anonymous@undisclosed.example.com) — 2021-04-12T19:20:58+00:00

51J4 In contrast to the fully transistorised radios, which hardly need any service work after the final adjustment at the factory is done and which should work for years without complaint - the tube-less technology is therefore called solid state - these

braun_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-04-03T19:56:52+00:00

Braun Portable Receivers The German manufacturer Braun developed various portable radios and, with the T1000 CD, a single serious world receiver, which received cult status due to its design by Dieter Rams. Portable Receivers by Braun T10001963/65Single ConversionVHF, LW, MW, 8 x SW

braun

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T09:48:08+00:00

Braun, Frankfurt The German manufacturer Braun developed various portable radios and, with the T1000 CD, a single serious world band receiver, which got cult status due to its design by Dieter Rams. Company history Max Braun oHG, Werkstatt für Apparatebau, Frankfurt brought out a first detector receiver around 1925 and later radio components; from 1933, the company had obtained a building permit and sold portable radios from 1936.

c-6500

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T15:24:23+00:00

C - 6500 Communications Receiver Manufactured by Standard Communications Corp., Japan. The heavyweight RA-17L was the first communications receiver introduced in 1959 which used the principle of the „Wadley Loop“ developed by Dr. T. L. Wadley. The tuning is done by a linear oscillator covering 1

captain_77

Anonymous (anonymous@undisclosed.example.com) — 2021-06-02T19:05:24+00:00

century-21

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T10:29:29+00:00

Century-21 Manufactured by Seiki Electronics Inc, Japan. In the 1980s, a Far East made receiver appeared in the shops, which with it's designation Century-21, did not evoke any familiar associations, but the set is technically similar to the Drake SSR-1 and probably practically identical to the Standard

century-21d

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T10:47:39+00:00

Century-21D Manufactured by Seiki Electronics Inc, Japan. Indeed it does exist - I was lucky enough to buy a set offered on eBay, the variant of the Century-21 with built-in digital display. I had already found an advertisement with pictures of the identical set labelled as

cf-950s

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T18:52:39+00:00

Sony CF-950S Manufactured by Sony Corp., Tokyo. In 1976 Sony released a close relative of the ICF-5900, the CF-950S has a built-in cassette recorder. [Sony CF-950S] Technical data * Principle: Double conversion, IF kHz / FM 10.7 MHz * Operation modes: A1 with BFO, AM (A3), FM (F3) * Frequency range: FM, MW, 3 x SW (1.6-4.0 / 4.0-10.0 / 11.7-22.0

chr-531

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T09:25:50+00:00

Siemens CHR 531 Manufactured by Siemens, Siemens AG Radio & Radar Systems Group, D-8044 Unterschleissheim. In 1984, Siemens brought out another sophisticated communications receiver, the CHR 531, which also met the highest demands in the reception of radioteletype transmissions and which faced competition from

collins_radio_comp._cedar_rapids

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T19:56:58+00:00

collins_radio_company

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T17:58:55+00:00

collins

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T17:53:41+00:00

Collins Radio Company [Collins Logo] The Collins Radio Company, founded by an enthusiastic shortwave radio amateur, produced communication equipment during the Second World War and was one of the most important manufacturers of communication receivers in the USA from the 1950s onwards.

colonel_697

Anonymous (anonymous@undisclosed.example.com) — 2021-12-25T17:43:30+00:00

Colonel 697 Colonel 697, made by an unknown manufacturer in Hong Kong. The Colonel 697 is a Hong Kong-built multiband radio that was sold as an „export set“ thanks to its coverage of the VHF band. [Colonel 697] Technical data * Principle: single conversion superhet, IF * Operation modes: AM (A3), FM (F3) * frequency range: LW, MW, SW (4 - 12

comet_pro

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T07:37:40+00:00

Hammarlund Comet Pro Manufactured by Hammarlund Mfg. Co., New York NY. In 1931, Hammarlund launched the „Comet“ model, one of the earliest single conversion superhet communication receivers available. In 1932, the improved version „Comet Pro“ appeared, this set was built in different variants until 1935.

commander_6100ds

Anonymous (anonymous@undisclosed.example.com) — 2021-05-07T20:00:20+00:00

Commander 6100 DS Distributed by Bogerfunk. The Commander 6100DS was distributed in Germany by Bogerfunk (a well known importer and distributor for amateur radio equipment) and was probably also sold under other names and brands. It is an inexpensive all-wave receiver, which seemed to be quite attractive due to the coverage of some

commercial_receivers

Anonymous (anonymous@undisclosed.example.com) — 2021-04-07T07:21:31+00:00

cr_2021

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T07:41:20+00:00

Uniden CR 2021 Manufactured by Uniden, Tokyo. In 1983 Uniden, the Japanese manufacturer of CB radios and scanners, presented the CR 2021, a shortwave travel receiver whose design appears to be strongly based on the Sony ICF-2001. [Uniden CR 2021] Technical data * Principle: Double conversion, IF kHz / FM 10.7

crf-1

Anonymous (anonymous@undisclosed.example.com) — 2021-06-04T18:50:55+00:00

Sony CRF-1 Manufactured by Sony Corp., Tokyo. The CRF-1 was launched in 1981 as the successor to the large Sony portables CRF-320 / CRF-330K. Sony had also invested an enormous amount of development time in this set, but shortly afterwards technical development surpassed these innovations. Nevertheless, the CRF-1 was to remain the most technically perfect portable receiver for a long time. In terms of reception performance, it outclassed the portable sets from

crf-150

Anonymous (anonymous@undisclosed.example.com) — 2021-05-29T05:53:25+00:00

Sony CRF-150 Manufactured by Sony Corp., Tokyo. As a smaller brother of the CRF-230, Sony launched two somewhat smaller portable radios in the late 1960s, covering long and mediumwaves, a combined tropical band range and nine shortwave broadcast bands, in these 600 kHz wide ranges, the receiver acts as double conversion superhet.

crf-160

Anonymous (anonymous@undisclosed.example.com) — 2021-05-29T18:31:30+00:00

Sony CRF-160 Manufactured by Sony Corp., Tokyo. As a smaller brother of the CRF-230, Sony launched a somewhat smaller portable receiver in the late 1960s, nine shortwave broadcast bands are covered, in addition to long- and mediumwave and a tropical bands range. In these 600 kHz wide shortwave ranges, the CRF-160 acts as a double conversion superheterodyne.

crf-220

Anonymous (anonymous@undisclosed.example.com) — 2021-05-31T19:34:46+00:00

Sony CRF-220 Manufactured by Sony, Corp., Tokyo. In the early seventies, Sony launched the „giant“ portable radios CRF-220 and its twin with an additional VHF band CRF-230. Like the later receivers of Sonys CRF series - the top of the range Sony sets were much more expensive than average sets and sold only in small numbers.

crf-230

Anonymous (anonymous@undisclosed.example.com) — 2022-09-17T07:00:22+00:00

Sony CRF-230 Manufactured by Sony, Corp., Tokyo. In the early seventies, Sony launched the „giant“ portable radio CRF-230, the set was apparently - like the later receivers of the CRF series - much more expensive than average sets and in several Western European countries was not sold at all because of the FM1 band reaching covering the lower VHF range.

crf-320

Anonymous (anonymous@undisclosed.example.com) — 2021-06-04T11:13:29+00:00

Sony CRF-320 Manufactured by Sony, Corp., Tokyo. In 1976, Sony launched the CRF-320, a high-priced portable world band receiver, which was not widely sold due to its high price tag of over DM 4000, but whose performance in the shortwave bands can still be compared with today's receivers. In contrast to the Grundig Satellit

crf-320a

Anonymous (anonymous@undisclosed.example.com) — 2021-06-04T11:20:54+00:00

Sony CRF-320A Manufactured by Sony, Corp., Tokyo. In 1976, Sony launched the CRF-320, a high-priced portable world band receiver, which was not widely sold due to its high price tag of over DM 4000, but whose performance in the shortwave bands can still be compared with today's receivers. In contrast to the Grundig Satellit

crf-5080

Anonymous (anonymous@undisclosed.example.com) — 2021-06-01T05:27:03+00:00

Sony CRF-5080 "Earth Orbiter" Manufactured by Sony Corp., Tokyo. In the USA, the „Zenith Transoceanic“ portable receivers with the horizontal turret tuner dial were a great success in the late 1960s, Sony adopted the design with the CRF-5080 / CRF-5090, the design was later taken up again in several world band receivers from the Far East.

crf-5090

Anonymous (anonymous@undisclosed.example.com) — 2021-06-01T20:00:39+00:00

Sony CRF-5090 "Earth Orbiter" Manufactured by Sony Corp., Tokyo. In the USA, the „Zenith Transoceanic“ portable receivers with the horizontal turret tuner dial were a great success in the late 1960s, Sony adopted the design with the CRF-5080 / CRF-5090, the design was later taken up again in several world band receivers from the Far East.

crusader_x

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T08:27:30+00:00

Pan Crusader X Distributed by Pan International, manufactured in Japan proabably by Standard Radio Corp. or Uniden. In the 1980s, a multiband receiver appeared that also covered the VHF ranges - as a „police communications radio“ its operation was illegal in Germany, which interested listeners twice as much. The set had a fame of having above-average reception characteristics, but this was far from reality.

crystal_calibrator

Anonymous (anonymous@undisclosed.example.com) — 2021-06-02T18:39:42+00:00

cw

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T12:00:52+00:00

d_1835

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T18:11:20+00:00

Philips D 1835 Compass Manufactured by Philips, Hilversum. As a competitor to the classic analogue shortwave multiband radios such as Sony's ICF-7600A or the RF-B50 from Panasonic, Philips launched the analogue D-1835 around 1986, probably an effort to gain a foothold in the relatively small travel receiver market.

d_2924

Anonymous (anonymous@undisclosed.example.com) — 2023-08-15T15:49:05+00:00

Philips D 2924 Manufactured by Philips, Eindhoven. In 1981, Philips launched a microprocessor-controlled single conversion superhet with a PLL synthesizer as a successor to the AL-990, a conventional double conversion receiver with a frequency counter. The reception performance of the set was modest, the D 2924 could not keep up with the Sony

d_2935

Anonymous (anonymous@undisclosed.example.com) — 2021-04-19T19:10:39+00:00

Philips D 2935 Manufactured by Philips, Eindhoven. In the mid-eighties, Philips launched two microprocessor-controlled shortwave receivers, in the wake of the microprocessor-controlled Sony ICF-2001. The D 2935 was designed as a travel receiver, the D 2999, which was technically very similar, had the look of a tabletop receiver. Both sets were the only real all wave receivers from Philips, designed to compete with the sets of

d_2999

Anonymous (anonymous@undisclosed.example.com) — 2022-08-21T07:17:11+00:00

Philips D 2999 Manufactured by Philips, Eindhoven. The Philips D 2999, released in the mid-eighties, is a microprocessor - controlled double conversion superhet. The D 2999 is a tabletop receiver in a similar format as the typical anateur radio transceivers, technically it is very similar to the somewhat more compact

digital_display

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:19:01+00:00

digitalanzeige

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:22:41+00:00

Digital frequency displays A digital frequency display is very helpful in tuning a set to a known frequency, in determining the frequency of an unknown signal or identifying a station on a frequency according to a frequency covering plan. There are two technical approaches to display a frequency on a digital display:

diverse_boatanchors

Anonymous (anonymous@undisclosed.example.com) — 2021-04-13T11:50:53+00:00

Boatanchor receivers from various manufacturers This section presents tube-equipped communication receivers from various manufacturers. If you can't find a manufacturer section in the main section „Boatanchors“, it's worth looking here. Nation Boatanchors from German manufacturersBoatanchors from British manufacturersBoatanchors by Swiss manufacturersTube-equipped commercial receivers made by Swiss manufacturers.

diverse_kommerzielle_empfaenger

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T20:17:11+00:00

Commercial receivers from various manufacturers In this section, you can find commercial receivers from different manufacturers, if there is no manufacturer section in the main section „Commercial receivers“, it is worth looking here. Nation Commercial receivers of German ManufacturersThis section lists commercial receivers of various German manufacturers.

diverse_reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2021-03-31T20:03:20+00:00

Travel portables from various manufacturers This section presents small-format travel receivers with coverage of the shortwave range from various smaller manufacturers. If there is no manufacturer section in the main „travel radios“ section, it is worth looking here.

double_conversion_superhet

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T11:45:16+00:00

double_conversion

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:39:24+00:00

dr-22

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T17:58:36+00:00

National Panasonic DR-22 / RF-2200 Manufactured by National Panasonic, Osaka. In the mid-seventies, Matsushita - Panasonic tried to counteracted the dominance of Sony and Grundig world band receivers and launched a series of sucessful world band receivers, which allowed an unproblematic entry into shortwave reception at an attractive price tag.

dr-28

Anonymous (anonymous@undisclosed.example.com) — 2022-11-27T15:10:00+00:00

National Panasonic DR-28 / RF2800LBS Manufactured by National Panasonic, Osaka. What Grundig did in the European market with its portable world band receivers, the Japanese company Matsushita did with its world band radios sold under the brand name National Panasonic. These and also the world band receivers of the main competitor

dr-29

Anonymous (anonymous@undisclosed.example.com) — 2021-05-10T20:28:31+00:00

National Panasonic DR-29 / RF-2900LBS Manufactured by National Panasonic, Osaka. The RF-2900LBS / DR-29 is a set very similar to the DR-28 receiver, a preselector was added, resulting in a significantly improved performance in large-signal surroundings. Variants * DR-29

dr-31

Anonymous (anonymous@undisclosed.example.com) — 2021-05-19T11:00:41+00:00

National Panasonic DR-31 / RF-3100 Manufactured by National Panasonic, Osaka. After their first world band receivers with digital frequency display, which were based on a conventional receiver design with a frequency counter, Panasonic introduced the RF-3100 in 1982. It was the first set of a new receiver generation with

dr-48

Anonymous (anonymous@undisclosed.example.com) — 2021-05-12T17:41:57+00:00

National Panasonic DR-48 / RF-4800 Manufactured by National Panasonic, Osaka. The Panasonic DR-48 / DR-49 receivers were the last in the series of Panasonic station receivers still using conventional technology and without PLL frequency synthesis. In the shortwave ranges, the operation frequency is decoupled and fed to a frequency counter.

dr-49

Anonymous (anonymous@undisclosed.example.com) — 2021-05-12T17:41:12+00:00

National Panasonic DR-49 / RF-4900 Manufactured by National Panasonic, Osaka. The Panasonic DR-48 / DR-49 receivers were the last in the series of Panasonic station receivers still designed in conventional technology and without PLL frequency synthesis. They were not quite as expensive as their big brothers

drake

Anonymous (anonymous@undisclosed.example.com) — 2021-07-28T19:47:54+00:00

R. L. Drake Company Robert Lloyd Drake founded the R.L.Drake Company in 1943, which initially manufactured amateur radio accessories. After moving to Miamisburg OH, the 1-A was introduced in 1957 it was their first shortwave receiver to cover the amateur radio bands in an astonishingly compact format.

dreifachsuper

Anonymous (anonymous@undisclosed.example.com) — 2021-07-28T19:52:15+00:00

Triple conversion superhet In a triple conversion se, the RF signal from the antenna is converted to an intermediate frequency not only two times like in the double conversion superhet, but three times; the third I.F. is used in special circuit designs, the performance and the mirror frequency rejection is similar like in a

dx-160

Anonymous (anonymous@undisclosed.example.com) — 2022-12-25T15:34:40+00:00

Realistic DX-160 Manufactured by Realistic DX / Tandy Corporation, Fort Worth, FL [Radio Shack DX-160] Technical data * Principle: single conversion superhet, IF 455 kHz * Operation modes: A1 with BFO, AM (A3) * Frequency range: 150 kHz - 30 MHz, plus 5 spread amateur radio bands * Frequency display: analogue dial * Frequency memory: none * Signal strength indicator: S-meter * Signal processing RF gain, noise limiter,

dx-190

Anonymous (anonymous@undisclosed.example.com) — 2022-12-25T15:49:51+00:00

Realistic DX-190 Manufactured by Realistic DX / Tandy Corporation, Fort Worth, FL. At the same time as the Alinco SX-190 was introduced, RadioShack sold the set from 1972 on as the DX-190. [Realistic DX-190] Technical data * Principle: Double conversion superhet, IF 2420 / 455 kHz * Operation modes: A1 with BFO,

dx-300

Anonymous (anonymous@undisclosed.example.com) — 2022-12-25T16:02:41+00:00

Realistic DX-300 Manufactured by Realistic DX / Tandy Corporation, Fort Worth, FL With the DX-300, RadioShack / Tandy introduced a decent tabletop all-band receiver in the budget price range in 1979. In contrast to its predecessor, the DX-200, it is equipped with a digital frequency display based on the

dx1000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T07:32:24+00:00

Bearcat DX1000 Manufactured by Bearcat, Electra Company, Cumberland, IN. In 1983, Bearcat developed an ambitious shortwave receiver; before that, the company had got its reputation mainly from scanner receivers, which had been developed by Uniden. [Bearcat DX1000] Technical data * Principle: Double conversion superhet, IF 40455 kHz, 455 kHz / FM 10.7

e-606

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:22:56+00:00

E-606 Transistor Radio E-606; developed and produced by Velectra SA / Biennophone, Bienne. In 1965 the Swiss company Velectra / Biennophone in Biel/Bienne developed a portable transistor radio used for the reception of the public broadcast channels in shelters and command posts of the Swiss Army and the Swiss Civil Protection organisation.

e-627

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:27:48+00:00

All Wave Receiver E-627 All Wave Receiver E-627, E-627; developed and produced by Autophon AG, Solothurn. Autophon developed the E-627 as a successor of the E44 which still was using battery tubes. It was the military shortwave receiver with the highest production numbers (444 sets have been made) and is still considered as fairly common in Switzerland, this might be due to the fact that these sets have been serviced regularly at Swiss arsenals and usually are in very good condition.

e-628

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:30:33+00:00

VHF Receiver E-628 VHF Receiver E-628, E-628; developed and produced by Autophon AG, Solothurn. In parallel to their shortwave receiver E-627, Autophon did develop the VHF-receiver E-628 with coverage of the VHF Air band in AM in the middle of the fifties. This receiver was based on a project of a receiver similar to the

e-646

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:37:05+00:00

E-646 Reception system E-646; developed and produced by Zellweger AG, Uster. After the World War II Swiss air raid alarm network was in need of renewal, Zellweger, Uster, was awarded the contract to develop an alarm broadcasting system with the option of selective call of receiver groups.

e39

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T06:21:50+00:00

E-600 (E39) Allwellenempfänger Autophon (All Wave Receiver 39), E39; developed and produced by Autophon AG, Solothurn. Autophon got an order to develop an allwave superheterodyne receiver in 1938 and developed the E39 receiver, based on their surveillance and measurement receiver RD2679. The concept of a receiver with a triple main tuning condenser and plug-in coil sets with calibrated frequency charts was based on National's HRO receiver. The core component, the triple - tuning condensator PW…

e41

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:06:10+00:00

E-601 (E41) Allwellenempfänger Uster (All Wave Receiver 41), E41; developed and produced by Zellweger AG, Uster. The Swiss company Zellweger, Uster, has constructed a shortwave receiver using battery tubes to fit their "Fahrbar Leichte Funkstation 40", the famous FL wireless station. This „FL Empfaenger“

e44

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:11:29+00:00

E-602 (E44) Allwellenempfänger 44 (All Wave Receiver 44), E44; developed and produced by Autophon AG, Solothurn. As a successor to the E39 receiver, which still used a technology with plug-in coil sets and a calibrated logging scale, Autophon started to develop a receiver with a turret tuner with directly switchable wavebands and a calibrated dial, which allowed the frequency to be read directly from the dial.

e45

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:14:09+00:00

Air Attack Alarm Receiver E-603 (E45) Alarmempfänger 45 (Air Attack Alarm Receiver 45), E45; developed and produced by Autophon AG, Solothurn. The E45 has been used as an Air attack Alarm receiver by the Swiss Airforce and Anti-Aircraft troops. A special transmitter transmitted tone coded signals to switch the receiver loud from standby operation when when an air attack message was transmitted.

e46

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:16:10+00:00

VHF Receiver E-604 (E46) VHF Empfänger 46, E46; developed and produced by Autophon AG, Solothurn. In parallel to their E52 / E44 receivers, Autophon developed a VHF - receiver; because of the use of the VHF range for military tactical communications was still quite far in the future, only a small test series of this receiver has been made on behalf of the Airforce / Anti-Aircraft troops.

e724

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T14:09:05+00:00

Telefunken E 724 SW/2 Telefunken E 724 SW/2, component of the Shortwave Receivng System Transradio; manufactured by Telefunken AG, Ulm. The E 724 SW/2 was developed in the seventies, it is a modular transistorised search and surveillance receiver, which was mainly used by the German army and navy.

e800

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T15:54:42+00:00

AEG / Telefunken E 800 VLF - HF Receiver E 800/2; manufactured by AEG - Telefunken, Ulm. The receivers of the E1800 family came in different versions: E1800E 1800, original version E1800/3E1800 with mechanical filters, improved front end E1800/4E 1800 with mechanical filters E1800AE 1800 with DSP in the second intermediate frequency

e863

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T14:29:05+00:00

Telefunken E 863 SW/2 Telefunken E 863 SW/2, component of the Shortwave Long distance Receiving System Transradio 21; manufactured by Telefunken AG, Ulm. The E 863 SW/2 was developed in the seventies, it is a modular transistorised search and surveillance receiver, which was mainly used by the German army and navy.

e1501

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T15:38:34+00:00

Telefunken E 1501 Manufactured by Telefunken AG, Ulm. The Telefunken E 1500 / E 1501 receivers were used partly for military purposes and partly for maritime radio. [Telefunken E 1501] Technical data * Principle: Double conversion superhet, IF 42,2 MHz / 200 kHz * Operation modes: A1 with BFO, SSB (A3JU/O), AM (A3), F1 * Frequency range: 10 kHz - 30000 kHz * Frequency display: digital display, 100 Hz reading accuracy

e1800_3

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T15:46:57+00:00

AEG / Telefunken E 1800/3 VLF - HF Receiver E 1800/3; manufactured by AEG - Telefunken, Ulm. There are several versions of the E1800 receiver system: E1800E 1800 with mechanical filters, improved front end E1800/3E 1800 with mechanical filters, improved front end E1800/4E 1800 with mechanical filters

e1800

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T15:43:50+00:00

AEG / Telefunken E 1800 VLF - HF Receiver E 1800; manufactured by AEG - Telefunken, Ulm. There are several versions of the E1800 receiver system: E1800E 1800 with mechanical filters, original version E1800/3E 1800 with mechanical filters, improved front end E1800/4E 1800 with mechanical filters

e1800a

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T15:58:47+00:00

AEG / Telefunken E 1800 A VLF - HF Receiver E 1800 A; manufactured by AEG - Telefunken, Ulm. There are various existing versions of the E1800 receiver system : E1800E 1800 with mechanical filters, improved front end E1800/3E 1800 with mechanical filters, improved front end E1800/4

e1900_3

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T16:07:05+00:00

AEG / Telefunken E 1900/3 VHF - UHF Receiver E 1900/3; manufactured by AEG - Telefunken, Ulm. Telefunken also developed a VHF / UHF receiver for the E1800 receiver family: the E 1900 covers the frequency range from 20 - 500 MHz and with an option also 500 - 1000 MHz. [Telefunken E 1900/3] Technical data

eb100

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T13:21:00+00:00

Miniport Receiver EB 100 Manufactured by Rohde & Schwarz, Munich. The EB 100 miniport receiver, introduced around 1985, is a compact VHF receiver for portable operation that can be used as a surveillance receiver, search receiver and scanner for detecting bugs or mini-transmitters.

eichmarkengeber

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T18:04:32+00:00

Crystal calibrator Many shortwave receivers in the sixties and seventies had frequency dials with a poor accuracy and only coarse frequency marks. In order to calibrate the dials, crystal calibrators were constructed. In these, a crystal oscillator generated provided harmonics usually on multiples of 1000 or 100 kHz. This signal causes a deflection on the signal strength instrument, and even better can be tuned to

ek47

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T09:10:51+00:00

Rohde & Schwarz EK 47 Manufactured by Rohde & Schwarz, Munich. Jointly distributed with Siemens as E 401 The EK 47 was launched in 1969 as the successor to the venerable EK07. With its digital frequency display with Nixie tubes, which was used for the first time, and its capability to demodulate

ek070

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T09:38:50+00:00

Rohde & Schwarz EK 070 manufactured by Rohde & Schwarz, Munich. The EK 070 general coverage receiver from Rohde & Schwarz was introduced in 1979; it has a PLL synthesis circuit, the digital frequency display indicates the reception frequency with an accuracy of 10 Hz. As one of the first shortwave receivers from R&S, the EK 070 has direct frequency input capabilities and thirty digital frequency memories.

ek071

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T09:55:41+00:00

Rohde & Schwarz EK 071 manufactured by Rohde & Schwarz, Munich. Parallel to the general coverage receiver EK070, Rohde & Schwarz launched the EK071 in 1979. Designed for fixed-frequency operation, the reception frequency is set by means of BCD switches, 50 frequencies can be stored even over a time of power failure.

ekd300

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T16:56:12+00:00

EKD300 Manufactured by RFT / VEB Funkwerk Köpenick, VEB Kombinat Nachrichtenelektronik, Köpenick. The EKD300 is a professional communications receiver derived from the EKD100 which was equipped with decadic frequency switches. [RFT Köpenick EKD300] Technical data * Principle: Double conversion superhet, IF 70,2 MHz / 200 kHz

ekd500

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T17:18:17+00:00

EKD500 Manufactured by RFT / VEB Funkwerk Köpenick, VEB Kombinat Nachrichtenelektronik, Köpenick. At the end of the 1970s, the EKD100, an excellent double conversion receiver with frequency setting via decadic switches, and in 1980/81, the EKD300 with a digital frequency display, a numeric keypad for direct frequency input and a conventional tuning knob, were launched and made their appearence in the monitoring sites of East German military agencies. In 1986, this receiver was replaced by the …

ekv_13

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T16:32:33+00:00

EKV (Single Sideband - Shortwave - Communications Receiver) Manufactured by RFT / VEB Funkwerk Köpenick, VEB Kombinat Nachrichtenelektronik, Köpenick. The EKV single sideband shortwave receiver was used primarily by East German intelligence and government agencies and was manufactured in various models and configurations by

ekv

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T16:33:12+00:00

empfaengerliste

Anonymous (anonymous@undisclosed.example.com) — 2021-04-15T13:16:24+00:00

Receiver list It will take me some time to have the complete receiver list ready. G Grundig * Grundig Yacht Boy 700 S Sony * Sony ICF-2001

empfindlichkeit

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:56:34+00:00

esu

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T11:24:20+00:00

Rohde & Schwarz VHF/UHF measuring receiver ESU VHF/UHF measuring receiver ESU, BN 150021/2, manufactured by Rohde & Schwarz, Munich. This measuring receiver was developed by Rohde & Schwarz in the 1960s; the set was supplied with different frequency adapters for the different frequency ranges.

esum

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T14:43:04+00:00

Rohde & Schwarz VHF/UHF measuring receiver ESUM VHF/UHF measuring receiver ESUM, BN 150021/2, manufactured by Rohde & Schwarz, Munich. The ESUM measuring receiver was developed by Rohde & Schwarz in the late 1960s as the successor to the ESU; the set was supplied with different frequency adapters for the different frequency ranges. The various frequency adapters could be operated directly from the main unit using the BN 150029 RF unit adapter.

eton_e1

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T12:14:20+00:00

Eton / Lextronix E1 (Grundig USA: Satellit 900) Eton / Lextronix E1 or „Satellit 900“ (distributed by Grundig USA), developed by Grundig USA / Lextronix. The Grundig Satellit 900 as successor of the Satellit 700 was presented at the end of 1995 at the Berlin Funkausstellung. Due to technical problems at the moment of its introduction, it never went into regular series production after a small series had been manufactured, and Grundig's world receiver production was discontinued shortly afterwa…

f3

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T08:14:17+00:00

features

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T12:31:04+00:00

Receiver Features Simple „world receivers“ do not leave the user with many more options than setting the frequency range, frequency and volume. With technical progress, the features of shortwave receivers were extended more and more. In some cases, technically similar basic sets with additional features were offered at a higher price.

fet-2

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T16:11:01+00:00

Rohde & Schwarz Counter FET-2 Counter FET-2 BN 4737/2; manufactured by Rohde & Schwarz, Munich. The Rohde & Schwarz counter was launched around the year 1968. The counter can be used as an event / pulse counter in the basic version and with the corresponding plug-in units as a frequency counter or for period duration measurement.

fm

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T18:02:03+00:00

frequency_dial

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T09:35:07+00:00

Frequency display Every receiver needs to have a useful frequency display, so you can determine the frequency of a received signal on the set, or you can search for a signal on a known frequency. On domestic radios and older sets, there are frequency dials on which the operation frequency can be read, modern sets and specially in high-quality

frequency_display

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:41:18+00:00

frequency_memories

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T10:00:59+00:00

Frequency memory The need to store frequencies of other stations in a networek has existed since the beginning of wireless communications. Originally, it was only possible to write down the frequency reading on the more or less inaccurate frequency dial; many sets had a logging dial for this purpose, the numerical value read on the 0 - 100 dial was recorded on a log table.

frequency_memory

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T09:52:09+00:00

frequency_modulation

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T20:17:50+00:00

Frequency modulation Frequency modulation, modern designation F3E, first came into use with the American army sets operating in the VHF range towards the end of the Second World War. On the higher frequency ranges above 30 MHz or above the upper end of the shortwave band, the signal bandwidth or channel spacing plays a subordinate role. FM signals have a much better audio quality and intelligibility, it is easier to work with squelch, and fading is hardly relevant as a transmission problem.

frequency_range

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T08:39:35+00:00

Frequency bands Both transmitting and receiving equipment operate on specific frequencies; the higher the construction quality of a set, the more accurate is the matching between the real operating frequency and the indication on the frequency dial. Highly accurate frequency stability can be achieved by using

frequenzanzeige

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:48:26+00:00

frequenzbereich

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:45:51+00:00

frequenzspeicher

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:51:09+00:00

frg-7

Anonymous (anonymous@undisclosed.example.com) — 2024-03-25T06:23:29+00:00

Yaesu FRG - 7 Manufactured by Yaesu Musen Company Ltd., Tokyo. After having developed several amateur radio receivers, the Japanese company Yaesu launched the FRG-7 as its first general coverage receiver. As a transistorised solid state set with high stability, good frequency reading accuracy and above-average reception characteristics, it quickly became very popular, even if the front panel design did not not meet everybodys esthetic expectations. It was known as the

frg-100

Anonymous (anonymous@undisclosed.example.com) — 2022-12-25T17:34:40+00:00

FRG - 100 Manufactured by Yaesu Musen Company Ltd., Tokyo. Following the introduction of the fully microprocessor-controlled FRG-8800 in 1985, which featured various memory and clock functions as well as the possibility of direct frequency input, Yaesu launched the FRG-100 as a small tabletop receiver in 1994, which was soon very popular among listeners due to its size and uncomplicated operation scheme. After Yaesu subsequently stopped building shortwave receivers, the FRG - 100 became the la…

frg-7000

Anonymous (anonymous@undisclosed.example.com) — 2022-12-25T16:54:10+00:00

Yaesu FRG - 7000 Manufactured by Yaesu Musen Company Ltd., Tokyo. As a successor to the FRG-7, Yaesu launched the FRG-7000 in 1977, a communications receiver still based on the Wadley Loop circuit with an integrated digital frequency display. [Yaesu FRG-7000] Technical data * Principle: triple conversion superhet, IF 45 MHz, 2 - 3 MHz, 455 kHz.

frg-7700

Anonymous (anonymous@undisclosed.example.com) — 2022-12-25T17:16:22+00:00

FRG - 7700 Manufactured by Yaesu Musen Company Ltd., Tokyo. In 1977 Yaesu adopted the technical principle of the Wadley loop circuit from their first general coverage receiver FRG-7 and equipped the set with a frequency counter with red LED display and a digital clock. This receiver FRG-7000 was replaced in 1981 by the

funkfernschreiben

Anonymous (anonymous@undisclosed.example.com) — 2021-04-15T13:15:06+00:00

Reception of CW (Morse) and radio teletype signals In the sixties, for the reception of Radio teletype (RTTY) signals, not only a powerful shortwave receiver was needed, but also a FSK converter connected to a noisy rattling electric teletypewriter was needed. In the eighties, automatic decoders became available: These could decode the text of a morse code or radio teletype transmission and display it on a monitor or a simple domestic television set.

funkwerkstatt

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T11:06:04+00:00

Radio repair workshop Over time, more and more measuring instruments, etc. have accumulated in my workshop, some of which are also worth mentioning. Tube testers MetrixU61B U.S.Signal CorpsTV-7 Measuring receivers Rohde & SchwarzESURohde & SchwarzESUMRohde & SchwarzESH-2 Signal generators LeaderLSG-17 Rohde & SchwarzSMAF BN 41402Rohde & SchwarzSMAF BN 41409Rohde & SchwarzSMFA Rohde & SchwarzSMDA Rohde & SchwarzSMFP Frequency counters

fv310

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T20:06:39+00:00

Sharp FV-310 Manufactured by Sharp, Osaka. In the early 1980s, the Japanese manufacturer Sharp had two compact world band receivers in the catalogue, the analogue set FV310 and the FV610 with built-in frequency counter. [Sharp FV-310] Technical data * Principle: Double conversion superhet, IF AM 2500 / 450 kHz / FM 10.7

fv610

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T20:19:24+00:00

Sharp FV-610 Manufactured by Sharp, Osaka. In the early 1980s, the Japanese manufacturer Sharp had two compact world band receivers in the catalogue, the analogue set FV310 and the FV610 with built-in frequency counter. [Sharp FV-610] Technical data * Principle: Double conversion superhet, IF AM 2500 / 450 kHz / FM 10.7

galaxy_mesa_4000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-26T19:36:15+00:00

Nordmende Galaxy Mesa 4000 Manufactured by Nordmende, Bremen; chassis 2.110 A/J resp. 772.110A/J In the seventies, Nordmende offered a whole range of shortwave portable radios, from the Galaxy Mesa 2000, which only covered the 49 m broadcast band to the multiband receiver equipped with a turret tuner

galaxy_mesa_6000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-26T20:03:48+00:00

Nordmende Galaxy Mesa 6000 Manufactured by Nordmende, Bremen; chassis 772.102.A. The Galaxy Mesa 6000 is the mid-range model of the Galaxy Mesa series from Nordmende, which was launched at the beginning of the seventies. The single conversion portable superhet covers the most popular shortwave bands.

galaxy_mesa_6600

Anonymous (anonymous@undisclosed.example.com) — 2021-05-26T20:10:18+00:00

Nordmende Galaxy Mesa 6600 Manufactured by Nordmende, Bremen; chassis 973.102.A. The Galaxy Mesa 6000 is the mid-range model of the Galaxy Mesa series from Nordmende, which was launched at the beginning of the seventies. The single conversion portable superhet covers the most popular shortwave bands.

galaxy_mesa_7000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-26T20:41:54+00:00

Nordmende Galaxy Mesa 7000 Manufactured by Nordmende, Bremen; chassis 772.191.A. This top-of-the-range set from the Galaxy Mesa series of 1971 has an impressive aspect and has a lot to offer to be included in the family of great world band receivers. It had to compete with the

galaxy_mesa_9000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T10:07:09+00:00

Nordmende Galaxy Mesa 9000 Manufactured by Nordmende, Bremen; chassis 6.100A. When Nordmende revised their receivers from the Galaxy Mesa series, in 1972 not simply a slightly improved Galaxy Mesa 7000 was released, but the set underwent profound improvements and was given the model number 9000. The

galaxy_mesa_9000st

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T10:07:26+00:00

Nordmende Galaxy Mesa 9000 St Manufactured by Nordmende, Bremen; chassis 2.100A / 772.100A. When Nordmende revised their receivers from the Galaxy Mesa series, in 1972 not simply a slightly improved Galaxy Mesa 7000 was released, but the set underwent profound improvements and was given the model number

globemanager

Anonymous (anonymous@undisclosed.example.com) — 2021-05-25T15:56:01+00:00

Nordmende Globemanager 11.191.A Manufactured by Nordmende, Bremen. I have little documentation on the Nordmende Globemanager, the set apparently appeared shortly before the introduction of the successful Galaxy Mesa series and anticipated some design cues from the

globetrotter_4_601_green

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T11:52:41+00:00

Nordmende Globetrotter Variant 4.601, green, 1964/65 Manufactured by Nordmende, Bremen; chassis number 864.601.00. As the first of a whole series of portable travel radios, as forefathers of modern „world band receivers“, Nordmende launched the „Globetrotter

globetrotter_4_601_gruen

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T16:27:46+00:00

globetrotter_4_601_orange

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T16:49:31+00:00

Nordmende Globetrotter Variant 4.601, orange, 1965/66 Manufactured by Nordmende, Bremen; chassis number 864.601.00. As the first of a whole series of portable travel radios, as forefathers of modern „world band receivers“, Nordmende launched the „Globetrotter

globetrotter_7_601

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T16:59:41+00:00

Nordmende Globetrotter Variant 7.601, orange, 1966/68 Manufactured by Nordmende, Bremen. In the variant of the „Globetrotter“ sold in 66/68, the selected shortwave band is indicated with a pointer and lines arranged in a star shape around the band selector switch.

globetrotter_808

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T11:25:54+00:00

Nordmende Globetrotter 808 Manufactured by Nordmende, Bremen; chassis 8.104A. The Globetrotter 808 was the last „big“ shortwave receiver from Nordmende, the conventionally built set has a turret tuner with spread shortwave bands. [Nordmende Globetrotter 808] Technical data * Principle: single conversion superhet, IF 1200 / 2460 kHz / FM 10,7

globetrotter_2019

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T19:29:05+00:00

Nordmende Globetrotter 2019 984.112 H, FTZ 11/639; distributed by Nordmende. The Nordmende Globetrotter 808 was the last large-format double conversion superhet from Nordmende. In the 1980s, Nordmende continued to have a shortwave radio with the prestigious name Globetrotter in its catalogue. However, the 2019 Globetrotter was a small-format travel radio that was almost certainly manufactured in the Far East; the resemblance to the Silver

globetrotter_amateur

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T17:50:12+00:00

Nordmende Globetrotter Amateur Variant 8.101B, 1968/70 Manufactured by Nordmende, Bremen. In 1968, Nordmende launched a high-end set, the Globetrotter Amateur. In contrast to the other sets from the Globetrotter series, is a double conversion superheterodyne; with its

globetrotter_tn6000

Anonymous (anonymous@undisclosed.example.com) — 2021-09-16T18:24:47+00:00

Nordmende Globetrotter TN 6000 Manufactured by Nordmende, Bremen. The variant „Globetrotter TN6000“ was sold in the years 68/69. The set can be recognized by its square band selector keys. The set has a band spread dial directly calibrated in frequencies.

globetrotter_tn6001

Anonymous (anonymous@undisclosed.example.com) — 2021-09-18T18:22:16+00:00

Nordmende Globetrotter TN 6000 Manufactured by Nordmende, Bremen. The variant „Globetrotter TN6001“ was sold in the years 69/70. The set can be recognized by its square band selector keys. For the first time, the type designation is indicated on the front panel and the set has a band spread dial directly calibrated in frequencies.

grundig_fuerth

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:24:44+00:00

grundig_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-05-04T18:51:21+00:00

Grundig Portable Receivers Shortly after the Second World War, Grundig in Fürth started the production of home radios. After an enormous expansion in the 1950s, Grundig introduced the Grundig Satellit 205, the first world receiver in Grundig's typical portable radio format, in 1964. The double conversion set

grundig_reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2022-09-16T10:03:54+00:00

In addition to the shortwave receivers from the „Satellit“ series which could be used as tabletop receivers with their double conversion circuit, Grundig also offered a series of small-format travel receivers. These sets from the Yacht Boyseries, mostly have a less complex single conversion circuit and are suitable for shortwave reception of the major external shortwave services.

grundig

Anonymous (anonymous@undisclosed.example.com) — 2021-03-28T08:49:40+00:00

Grundig AG, Fürth Company history After the Second World War, Radio Vertrieb Fürth as a predecessor of Grundig started producing home radios in a very small stage, the first set called the „Heinzelmann“ was sold as a kit, as producing radios in the German occupation zones usually needed a special permit of the military administration.

h500

Anonymous (anonymous@undisclosed.example.com) — 2021-12-25T19:33:47+00:00

Trans Oceanic H500 Manufactured by Zenith Radio Corp., Chicago, IL. Ten years after Zenith had introduced the earliest „Trans Oceanic“ multi-band radio, the company introduced the H500, which had miniature valves fitted. 245'000 of these sets were sold, the H500 achieved the largest production figures of all

hammarlund_mfg._co

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T07:36:27+00:00

hammarlund

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T06:56:22+00:00

Hammarlund Mfg. Co, New York, NY Hammarlund, an American manufacturer, launched the first commercially sold superhet in 1931 and was a well-known manufacturer of amateur and commercial shortwave receivers until the end of the 1960s. Conpany History Like other American manufacturers, the Hammarlund company was initially founded to produce components necessary for radio (self) construction. It was not until 1931 that the first complete radio set, the

hersteller

Anonymous (anonymous@undisclosed.example.com) — 2021-04-15T13:31:15+00:00

Manufacturers A AORTabletop receivers by AORStationsempfänger von AORAutophonBoatanchors by AutophonAutophon B Barlow WadleyTabletop receivers by Barlow WadleyBarlow WadleyBlaupunktTabletop receivers by BlaupunktBlaupunkt PortabelradiosBraunTabletop receivers by BraunBraun C CollinsBoatanchors by CollinsCollins D Drake / R. L. DrakeTabletop receivers by DrakeDrakeCommercial receivers by DrakeBoatanchors by Drake E EddystoneBoatanchors by EddystoneEddystone G GrundigGrundig travel portablesGrund…

hf-150

Anonymous (anonymous@undisclosed.example.com) — 2022-08-20T17:13:06+00:00

HF-150 Manufactured by Lowe, Lowe Electronics Ltd, Bentley Bridge, Chesterfield Road, Matlock Derbyshire DE4 5LE. Around 1991, British manufacturer Lowe, whose sets took an unconventional approach to no-frills shortwave reception, came up with the compact HF-150. Around 1987, Lowe had made its first step as a developer of shortwave receivers with its uncompromising

ic-r70

Anonymous (anonymous@undisclosed.example.com) — 2021-08-02T06:19:56+00:00

Icom IC-R70 Manufactured by Icom, Osaka. After the Japanese company Icom already had built up a good reputation with its amateur radio equipment, the company introduced their first communications receiver with a continuous frequency coverage up to 30 MHz in 1982, it prepared the way for other successful receivers due to its good reception performance, but its operation scheme was not entirely straightforward.

ic-r71

Anonymous (anonymous@undisclosed.example.com) — 2021-08-04T19:09:52+00:00

Icom R-72 Manufactured by Icom, Osaka. In 1986 Icom released the successor to the IC-R70, The R71 is technologically similar to the IC-R70 but has 32 digital frequency memories. Caution: the microprocessor code in the RAM of the radios processor is maintained by a backup battery, if this is exhausted or the battery is removed for replacement, the RAM content is lost. In the past the set had to be sent to

icf_-_7601

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T09:44:39+00:00

Sony ICF-7601 manufactured by Sony. The ICF-7601 without the letter L which is used for the European version, ist the international variant of the Sony ICF-7601L covering the 120 - 75 m tropical bands instead of longwaves.

icf-2001

Anonymous (anonymous@undisclosed.example.com) — 2021-04-21T19:17:38+00:00

Sony ICF-2001 Manufactured by Sony, Tokyo. When Sony introduced the first microprocessor-controlled shortwave receiver in 1980, it was an absolute innovation in the design and concept of shortwave travel radios. For the first time in a travel portable, direct frequency input via a numeric keyboard was realised in the

icf-2001d

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T12:28:40+00:00

Sony ICF-2001D Manufactured by Sony, Tokyo. When Sony introduced the first microprocessor-controlled shortwave receiver in 1980, it triggered a revolution in the design and concept of travel shortwave receivers. The fact that it was no longer necessary to carry around a 6 - 10 kg suitcase sized receiver with protective brackets and a large handle, but a small box that looked like a large pocket calculator, also helped to facilitate shortwave reception among travellers.

icf-2002

Anonymous (anonymous@undisclosed.example.com) — 2021-04-23T20:02:18+00:00

Sony ICF-2002 Manufactured by Sony, Tokyo. The Sony ICF-2002 is the international / U.S. variant of the Sony ICF-7600D After Sony had launched the ICF-2001 as the first microprocessor-controlled world band receiver in 1980, the ICF-7600D, the first microprocessor-controlled travel receiver in pocketbook format followed in 1983. In Japan and the USA it was distributed as the

icf-2003

Anonymous (anonymous@undisclosed.example.com) — 2021-04-25T20:05:52+00:00

Sony ICF-2003 Manufactured by Sony. The Sony ICF-2003 is corresponding to the U.S. or international version of the ICF-7600DS.

icf-2010

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T05:27:37+00:00

Sony ICF-2010 ICF-2010 ; manufactured by Sony. The U.S. variant of the very popular Sony ICF-2001D carried the designation ICF-2010, for the details refer to the page of the European model. Additional Information * Sony ICF-2010 on www.radiomuseum.org

icf-3000l

Anonymous (anonymous@undisclosed.example.com) — 2022-09-17T08:16:31+00:00

Sony ICF-3000L Manufactured by Sony, Corp., Tokyo. Around 1976, Sony released a travel radio with an integrated quartz clock with alarm function, the display of the quartz clock was at that time still mechanical. [Sony ICF-3000L] Technical data * Principle: single conversion superhet, IF 468 kHz / FM 10.7

icf-4900

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T11:51:15+00:00

Sony ICF-4900 Manufactured by Sony, Tokyo. Around 1985, Sony introduced the miniature receiver ICF-4900 with several shortwave ranges as successor of the ICR-4800, it was the first set with the typical Sony designation with the famous letters ICF. In the USA, the set was sold as

icf-5100

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T12:02:05+00:00

Sony ICF-5100 Manufactured by Sony, Tokyo. Around 1987, Sony introduced the ICF-5100 miniature receiver as a successor to the ICF-4900 with some cosmetic changes; in the USA, it was sold as the ICF-4920. [Sony ICF-5100, image from the brochure] Technical data * Principle: Double conversion superhet, IF xx / 455 kHz / FM 10.7 MHz *

icf-5500m

Anonymous (anonymous@undisclosed.example.com) — 2021-09-17T19:32:23+00:00

Sony ICF-5500M, "Captain 55" Manufactured by Sony Corp., Tokyo. In the 1970s, Sony launched a series of travel receivers in portrait format, the Captain 55 and the somewhat larger Captain 77 were both single conversion sets, the ICF-5900W had a similar format, but as a double conversion superhet it had a completely different operating concept.

icf-5800l

Anonymous (anonymous@undisclosed.example.com) — 2021-06-02T05:30:53+00:00

Sony ICF-5800L "Captain 77" Manufactured by Sony Corp.,Tokyo. The Captain 77 or ICF-5800 was launched in the same time period as the somewhat more modest Captain 55; the „big brother“ ICF-5900W had a similar format, but as a double conversionset it had a completely different operating concept.

icf-5900w

Anonymous (anonymous@undisclosed.example.com) — 2021-09-16T19:24:50+00:00

Sony ICF-5900W Manufactured by Sony Corp., Tokyo. The ICF-5900W has a similar format like the Captain 55 or 77, but the cabinet houses a double conversion superhet with a completely different operating scheme. [Sony ICF-5900W] Technical data * Principle: Double conversion superhet, IF AM 10.7 MHz, 455 kHz / FM 10.7 MHz

icf-6500w

Anonymous (anonymous@undisclosed.example.com) — 2022-09-17T07:29:34+00:00

Sony ICF-6500W Manufactured by Sony, Tokyo. In the 1980s, Sony launched a portable radio with a digital frequency display, which was not popular in Switzerland. [Sony ICF-6500W] Technical data * Principle: Double conversion superhet, IF kHz / FM 10.7 MHz * Operation modes: A1 with BFO, AM (A3), FM (F3) * frequency range: FM broadcast band, MW, 3 x SW (3.9-10.3 / 11.5-20.3 / 19.9-26.3

icf-6700l

Anonymous (anonymous@undisclosed.example.com) — 2021-06-03T07:29:19+00:00

Sony ICF-6700W Manufactured by Sony Corp., Tokyo. The Sony ICF-6700 W/L has a cuboid „breadbox“ format, similar to the better known Sony ICF-6800W. Its „sibling“ is a conventional double conversion superhet covering longwaves / mediumwaves and three shortwave ranges, each about 10 MHz

icf-6700w

Anonymous (anonymous@undisclosed.example.com) — 2021-06-03T07:28:15+00:00

icf-6800w

Anonymous (anonymous@undisclosed.example.com) — 2021-09-18T08:02:29+00:00

Sony ICF-6800W (white) Manufactured by Sony Corp., Tokyo. The Sony ICF-6800W has a special place in the hierarchy of world band receivers from Sony. Due to its performance, it could be classified as a (semi)professional set and get a designation from the CRF series, but in terms of technical construction and pricing, it has its place in the ICF - series of home shortwave radios. After a first series, the ICF-6800W was improved especially with regard to its suboptimal large-signal behaviour and…

icf-6800wa

Anonymous (anonymous@undisclosed.example.com) — 2021-06-03T19:56:17+00:00

Sony ICF-6800WA (orange) Manufactured by Sony Corp., Tokyo. The Sony ICF-6800W has a special place in the hierarchy of world band receivers from Sony. Due to its performance, it could be classified as a (semi)professional set and get a designation from the CRF series, but in terms of technical construction and pricing, it has its place in the ICF - series of home shortwave radios. After a first series, the ICF-6800W was improved especially with regard to its suboptimal large-signal behaviour a…

icf-7600

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T20:07:41+00:00

Sony ICF-7600 Manufactured by Sony, Tokyo. With the ICF-7600, Sony presented an innovation in the field of portable world band receivers in the year 1978 - until then, potential buyers imagined a powerful world band receiver to be a large portable radio with two carrying handles, and turret tuner was the technical state of the art.

icf-7600a

Anonymous (anonymous@undisclosed.example.com) — 2021-09-17T19:33:14+00:00

Sony ICF-7600A Manufactured by Sony, Tokyo. In 1983, Sony launched the ICF-7600A as successor to the first miniature multiband shortwave travel radio ICF-7600. In a cabinet that had an almost identical appearance, Sony now managed to accommodate a complete analogue double conversion receiver.

icf-7600d

Anonymous (anonymous@undisclosed.example.com) — 2021-04-23T20:08:55+00:00

Sony ICF-7600D Manufactured by Sony, Tokyo. After Sony had a great success in 1980 with the ICF-2001 which was the first microprocessor-controlled world band receiver. The ICF-7600D, the first microprocessor-controlled travel radio in small, i.e. pocketbook format, followed in 1983. Two years later, its big brother, the

icf-7600da

Anonymous (anonymous@undisclosed.example.com) — 2021-04-25T20:23:50+00:00

Sony ICF-7600DA Manufactured by Sony, Tokyo. As a compromise between digital technology and analogue „touch and feel“, Sony launched the ICF-7600DA (for Digital Analogue) in 1987. The set with its hermaphroditic existence with digital frequency display and also a conventional frequency dial with an LCD line as dial pointer was no commercial success.

icf-7600ds

Anonymous (anonymous@undisclosed.example.com) — 2021-04-23T20:41:08+00:00

Sony ICF-7600DS Manufactured by Sony, Tokyo. The small Sony ICF-7600D was released to the market in 1983 and it was a successor to the Sony ICF-2001, the very first double conversion superhet with digital PLL frequency synthesis in pocketbook format. In the years before, WRTH still rated the

icf-7601

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T09:46:43+00:00

icf-7601l

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T09:43:03+00:00

Sony ICF-7601L Manufactured by Sony, Tokyo. At the end of 1988, Sony introduced the successor to the analogue double conversion radio ICF-7600A. Considering the format and the black plastic cabinet, it is evident, that the Sony ICF-7601 is a part of the 7600 family, respectively it contributes to the confusion between the type numbers. The number of spread shortwave bands has been increased to 9.

icf-7700

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T09:26:24+00:00

Sony ICF-7700 Manufactured by Sony, Tokyo. The Sony ICF-7700 is the international version of the ICF-7600DA.

icf-7800

Anonymous (anonymous@undisclosed.example.com) — 2021-04-27T19:18:21+00:00

Sony ICF-7800 "Newscaster" Manufactured by Sony, Tokyo. Around 1978 Sony presented a travel radio with a unique design, the radio can be folded open in the middle with a hinge, only then the speaker and controls become accessible. [Sony ICF-7800] Technical data *

icf-8650w

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T12:59:39+00:00

Son ICF-8650W Manufactured by Sony Corporation, Tokyo. In the same period as the ICF-6800W was launched, Sony presented an aeronautical communications receiver in a design similar to the CRF-1. For operation, the radio can be set in a tilted position with a set-up bracket. [Sony ICF-6850 W] Technical data

icf-pro70

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T20:35:52+00:00

Sony ICF-PRO70 Manufactured by Sony, Tokyo. Sony introduced the ICF-PRO70 / 80 as a scanner receiver in 1987; it came in the same cabinet with the „look“ of a walkie-talkie radio as the AIR-7. While the PRO-70 was also available in a variant approved by the German communications agency, the PRO-80, equipped with a converter for receiving the VHF ranges, did not never get FTZ approval.\

icf-pro80

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T20:36:13+00:00

Sony ICF-PRO70 Manufactured by Sony, Tokyo. Sony introduced the ICF-PRO70 / 80 as a scanner receiver in 1987; it came in the same cabinet with the „look“ of a walkie-talkie radio as the AIR-7. While the ICF-PRO70 was also available in a variant approved by the German communications agency, the PRO-80, equipped with a converter for receiving the VHF ranges, did not never get FTZ approval.\

icf-sw1

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T11:22:45+00:00

Sony ICF-SW1 Manufactured by Sony,Tokyo. In 1987 Sony introduced another very innovative set, a subminiature world band receiver, a double conversion superhet with digital PLL frequency synthesis which in similar size never has been developed since. The set suffered one disadvantage due to its extreme miniaturisation; the SMD electrolytic capacitors could not cope with the stress of operation, all of them tend to fail and may lead to defects and corrosion damage due to leakage. Before buying …

icf-sw12

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T12:09:04+00:00

Sony ICF-SW12 Manufactured by Sony Tokyo. In 1997, Sony introduced an analogue travel receiver with a design similar to that of a notebook computer. The SW-12 has only a similar outer appearance like the digital ICF-SW100, otherwise the analogue set has little in common with that microprocessor controlled receiver.

icf-sw15

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T12:37:39+00:00

Sony ICF-SW15 Manufactured by Sony, Tokyo. In 1993 Sony released a small format analogue travel radio in a series of other sets. The ICF-SW15 is not the most ambitious receiver but is an example of the performance that can be achieved from a carefully designed analogue portable.

icf-sw20

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T13:22:35+00:00

Sony ICF-SW20 Manufactured by Sony, Tokyo. The ICF-SW20, released in 1989, is an analogue miniature receiver, it has almost the dimensions of an ICF-SW1 (or the Panasonic RF-9L). [Sony ICF-SW20] Technical data * Principle: Double conversion, IF 455 kHz / FM 10.7 MHz * Operation modes: AM (A3), FM (F3) * Frequency range: FM, LW, MW, 7 x SW (49 - 13 m)

icf-sw22

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T15:09:06+00:00

Sony ICF-SW22 Manufactured by Sony, Tokyo. The ICF-SW22, which was released in 1993, looks very similar to the ICF-SW15, but it is one step smaller smaller and has almost the same dimensions as the ICF-SW1 (or the Panasonic RF-9L). [Sony ICF-SW22] Technical data * Principle: Double conversion, IF kHz / FM 10.7

icf-sw33

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T15:20:25+00:00

Sony ICF-SW33 Manufactured by Sony, Tokyo. Sony introduced the compact world band receiver ICF-SW33 which focused on world time clock functions in 1993. [Sony ICF-SW33] Technical data * Principle: Double conversion superhet, IF 21.44 MHz / 450 kHz / FM 10.7 MHz * Operation modes: AM (A3), FM (F3) * Frequency range: FM, MW, 11 x SW (3.7 - 26.1

icf-sw40

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T15:30:59+00:00

Sony ICF-SW40 Manufactured in Taiwan by Sony. In 1996 Sony presented a compact world band receiver, the set with PLL synthesis has a rotary knob for frequency tuning and similar to the ICF-7600DA a pseudo-analogue LCD bar display above an analog dial. Technical data

icf-sw55

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T15:54:41+00:00

Sony ICF-SW55 Manufactured by Sony, Tokyo. In 1991, Sony added another „World Band Receiver“ to their range of different travel shortwave radios, the ICF-SW55 filled the gap between the „big“ ICF-2001D or ICF-SW77 and the „small“ receivers of the ICF-7600D series, as far as reception performance as well as dimensions and weight are concerned.

icf-sw77

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T19:36:35+00:00

Sony ICF-SW77 Manufactured by Sony, Tokyo. Sony worked for a long time on a successor to the legendary ICF-2001D, which had set a new standard in the field of portable world band receivers with its outstanding performance and synchronous detector. In summer 1991, Sony's new flagship was presented, but several technical difficulties led to the withdrawal of the set and a relaunch in 1992.

icf-sw100

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T18:03:39+00:00

Sony ICF-SW100 Manufactured by Sony, Tokyo. In 1994/5, about seven years after the introduction of the tiny ICF-SW1, Sony came up with another small receiver; Sony's engineers managed to build a complete double conversion superhet with PLL synthesis into the little cabinet with a lid that opens like a notebook.

icf-sw800

Anonymous (anonymous@undisclosed.example.com) — 2021-04-27T19:58:04+00:00

Sony ICF-SW800 Manufactured by Sony, Tokyo. In 1989 Sony came up with a completely new concept of a travel receiver, it was the time of alphanumeric liquid crystal displays. Just as, for example, the Grundig Satellit 500 or Sony's ICF-SW55 were able to provide not only the frequency but also (previously stored) plain text information about the station. It is also possible with the

icf-sw1000t

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T19:10:40+00:00

Sony ICF-SW1000T Manufactured by Sony, Tokyo. In 1995, Sony once again presented the ultimate result of its miniaturisation efforts: the engineers had managed to fit an autoreverse cassette recorder and a complete double conversion superhet with PLL synthesis into a receiver not much bigger than the packaging of an audio cassette.

icf-sw7600

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T09:58:15+00:00

Sony ICF-SW7600 Manufactured by Sony, Tokyo. Around 1989/90 Sony introduced the successor to the ICF-7600D, the double conversion receiver with nearly identical dimensions has also similar technical specifications. [Sony ICF-SW7600] Technical specifications * Principle: Double conversion superhet, IF kHz / FM 10.7

icf-sw7600g

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T17:38:48+00:00

Sony ICF-SW7600G Manufactured by Sony, Tokyo. The 7600 model family of Sony receivers was initially after the anncestor ICF-7600D continued in 1987 with the ICF-7600DS resp. ICF 2003, besides minor technical improvements, the set was given a new anthracite grey colour with colour accents and the price was reduced by about 30%.

icf-sw7600gr

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T17:58:49+00:00

Sony ICF-SW7600G Manufactured by Sony, Tokyo. The 7600 model series of Sony receivers was initially continued in 1987 with the ICF-7600DS or ICF 2003; at the beginning of the 1990s, Sony gave the ICF-SW7600 a new appearance with trendy round, partly recessed buttons and dark colour. A technological advance was the

icom

Anonymous (anonymous@undisclosed.example.com) — 2021-08-01T05:38:09+00:00

Icom The Inoue Electric Factory Company Ltd. was founded in 1964 and soon got a good reputation for their solid state amateur radio equipment, initially covering the VHF range. After several portable transceivers, Icom brought out the IC-R70 in 1982, it was the first in a series of successful receivers.

icr-4800

Anonymous (anonymous@undisclosed.example.com) — 2021-04-22T11:44:20+00:00

Sony ICR-4800 Manufactured by Sony, Tokyo. In 1981, Sony launched a miniature receiver with multiple shortwave ranges. [Sony ICR-4800] Technical data * Principle: single conversion superhet, IF 455 kHz / FM 10.7 MHz * Operation modes: AM (A3), FM (F3) * Frequency range: FM, LW, MW, 5 x SW (49 - 16 mb) * Frequency display: analogue dial, approx. 25 kHz

if_filters

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T09:46:57+00:00

IF Filters To reduce a receivers selectivity, so that a receiver can be tuned to a single desired frequency and only transmissions on this frequency and not interfering signals from adjacent channels are demodulated, IF filters are used. In simple sets, only one IF filter is provided. In more sophisticated recivers a choice of two ore more filters is available; with a NARROW / WIDE - switch or a rotary switch, the IF bandwidth can be changed.

if

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:31:57+00:00

informant_44

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T20:25:57+00:00

Gauer Informant 44 Distributed by Gauer AG, 8052 Zurich. In the seventies, the Zurich based company Gauer offered a small receiver with coverage of the VHF aeronautical radio band. [Gauer Informant 44] Technical data * Principle: single conversion superhet, * Operation modes: AM (A3) * Frequency range: MW, Air Band 116 - 136 MHz * Frequency display: Analogue dial * Frequency memory: none *

intermediate_frequency

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T09:19:39+00:00

isb

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T15:11:01+00:00

ISB The operation mode ISB (Independent Sideband) is a special operation mode in which two audio contents can be transmitted simultaneously modulated on one signal. It is also referred to as A3B or 6B8E. In normal amplitude modulation, a carrier signal and two sidebands with identical information are transmitted. In the operation mode

itt_schaub-lorenz_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-04-03T19:58:48+00:00

ITT Schaub - Lorenz Portable Receivers ITT Schaub-Lorenz produced several portable radios in their „Touring“ series, but only a few of them can be considered as serious „world receivers“. Portable receivers by ITT Schaub - Lorenz Touring CD 107

itt_schaub-lorenz

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T13:25:13+00:00

ITT Schaub-Lorenz Company history G. Schaub Apparatebau - Gesellschaft mbH was founded in 1925 in Berlin-Charlottenburg and initially manufactured detector and valve receivers. In 1934, the production was moved to Pforzheim. In 1941, the company is integrated into Conrad Lorenz AG, Berlin, and adapted to wartime production; after a bombing raid, the factory burned out in February 1945.

japan_radio_co

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T16:29:07+00:00

japan_radio_company

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T15:59:05+00:00

Japan Radio Company [Japan Radio Company] Japan Radio Co. or JRC, Japanese Nihon Musen Kabushiki Kaisha, Tokyo. Company History The Tokyo-based Japan Radio Company developed radiotelegraphic equipment from the 1920s onwards, and later radio and navigation equipment for maritime use, including radar systems and GPS equipment.

japanische_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T07:37:13+00:00

Portable multiband receivers from various Japanese manufacturers As an alternative to the German portable receivers from Grundig and Nordmende, and to the American Zenith receivers, quite a number of sets from Japanese manufacturers came on the market in the 1970s, some carried exotic brand names. They were often characterised by a multitude of features and chrome-flashed controls, but also by weak workmanship and by omitting essential but expensive components (linear VFO, digital frequency dis…

jrc

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T12:27:17+00:00

kenwood

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T14:14:48+00:00

Kenwood, Trio Kenwood Electronic Inc. The Trio-Kenwood company soon got a good reputation in amateur radio, home electronics, car radio and more recently in the production of mobile phones, computer peripherals and MP3 players. In 1986, the name was changed to

kommerzielle_empfaenger_deutschland

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T20:18:07+00:00

Commercial receivers from German manufacturers Several German manufacturers produced commercial receivers for military, maritime or other commercial use. This section lists equipment made by manufacturers who offered only a small number of commercial receivers.

kommerzielle_empfaenger_schweiz

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T20:21:16+00:00

Commercial receivers from Swiss manufacturers Several Swiss manufacturers produced commercial receivers that were used for military, maritime or other fixed communication services. This section lists equipment made by manufacturers who made only a small number of commercial receivers.

kommerzielle_empfaenger_von_drake

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T19:28:14+00:00

R. L. Drake Commercial Receivers Robert Lloyd Drake founded the R.L.Drake Company in 1943, which initially manufactured amateur radio accessories. After moving to Miamisburg OH, the receiver 1-A was introduced in 1957 as the first shortwave receiver to cover the amateur radio bands in astonishingly compact dimensions. Around 1960 - 1966, the set was followed by the the

kommerzielle_empfaenger_von_rft_funkwerk_koepenick

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T19:46:55+00:00

Commercial receivers from RFT / Funkwerk Köpenick The VEB Kombinat Nachrichtenelektronik, Köpenick was a manufacturer of high end communications receivers in the former GDR, the German Democratic Republik. Many sets were exported to other Eastern European countries of the RGW. After the reunification of Germany, a good number of sets from state agencies were sold on the second-hand market. As far as reception performance is concerned, these receivers can easily compete with receivers from the r…

kommerzielle_empfaenger_von_rohde_schwarz

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T19:52:50+00:00

Rohde & Schwarz Commercial receivers The Munich-based company Rohde & Schwarz is one of most important manufacturers of communications equipment and has an excellent reputation in the field of aeronautical radio as well as in the development of VHF broadcasting transmitters.

kommerzielle_empfaenger_von_siemens

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T19:58:24+00:00

Siemens Commercial receivers The German company Siemens was founded in 1847 as Telegraphen-Bau-Anstalt Siemens & Halske and was in the early days of radio already active in the construction of transmitters, receivers and also valves. Radio production came to a standstill with the destruction of the Siemens plants in Berlin and Arnstadt during World War II.

kommerzielle_empfaenger_von_telefunken

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T20:08:29+00:00

Telefunken Commercial receivers Competing wireless development groups from AEG and Siemens Halske joined forces in 1903 to form the „Gesellschaft für drahtlose Telegraphie mbH“, which later became Telefunken. A large number of commercial receivers helped

kommerzielle_empfaenger_von_watkins_johnson

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T20:13:16+00:00

Watkins - Johnson Commercial Receivers The Watkins-Johnson Company was founded in 1957 in Palo Alto, CA; renamed to Watkins-Johnson Company Telecommunications Group in Gaithersburg, MA, it manufactured communications equipment primarily for military and intelligence agencies after 1966, and at last employed 450 people.

kommerzielle_empfaenger

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T19:21:54+00:00

[Rohde & Schwarz EK-070] For decades, short-wave communication was the only way to communicate across long distances without telephone wires. With the appropriate equipment and antennas, even global communication was also possible. In those days, the use of jamming transmitters to block an unwanted foreign station was the same as todays network blocking.

kurzwellenempfang_2

Anonymous (anonymous@undisclosed.example.com) — 2021-04-15T12:54:59+00:00

If you have followed the previous steps, connection of power supply, antenna and a loudspeaker or some headphones, at least a hiss should be audible from the set. After tuning to 6 1 5 5 kHz resp. 6.155 MHz, the „Österreichischer Rundfunk“ should be audible (at least in the morning hours, the terrestrial broadcasting service of the Austrian national radio is still active for some hours in the day

kurzwellenempfang_3

Anonymous (anonymous@undisclosed.example.com) — 2021-04-15T12:53:46+00:00

Operating modes The signal breaking in on frequency 6 1 5 5 originates in Central Europe from the European service of „Österreichischer Rundfunk“. It can sound almost as good as the first channel of your national FM programme, or it can be croaky or muffled and hardly identifiable. In these cases, the operating mode is probably not correctly set.

kurzwellenempfang_4

Anonymous (anonymous@undisclosed.example.com) — 2021-04-15T12:53:07+00:00

Signal processing Shortwave reception is characterised by the fact that stations often coming with a weak signal due to low transmitter power, propagation disturbances and interference from signals from stations on adjacent channels or even on the same frequency.

kurzwellenempfang

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T09:35:09+00:00

Shortwave Reception From the example of the shortwave receiver NRD-535, I will guide you how to operate a contemporary shortwave communication receiver with it's most important controls and functions. There have been some guidebooks usually given away with the purchase of a

l6x38t

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T17:25:48+00:00

Phlips L6X38T L6X38T manufactured by Philips. The Philips L6X38T attracted much attention when the transistorised all wave receiver made an appearance in a James Bond movie. [Philips L6X38T] Technical data * Principle: single conversion, IF 460 kHz / FM 10.7 MHz * Modes: AM (A3), FM (F3) * Frequency range: LW, MW, 4 x SW (1.6-4.2 / 4.2-8 / 8-16 / 16-27

lafayette_guardian_6000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-07T11:00:13+00:00

Lafayette Guardian 6000 Lafayette Guardian 6000 resp. 99-35065W, manufactured in Japan, distributed in the USA under the Lafayette brand. The Lafayette Guardian is a simple multiband receiver covering longwaves up to the maritime communications shortwave band and VHF and VHF ranges, and was apparently used by Swiss authorities Switzerland in the detection of RF interference.

lsg-17

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T14:54:17+00:00

Signal Generator LSG-17 Manufactured by Leader, Leader Electronics Co. or Ohmatsu Denki Co., Tokyo. The Leader LSG-17 signal generator is a simple mains-powered portable RF generator that is extremely versatile for testing receivers. [Leader LSG-17] Technical data *

mains_operation

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:44:05+00:00

mains

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:24:21+00:00

marc_nr-52f1

Anonymous (anonymous@undisclosed.example.com) — 2021-05-07T10:45:12+00:00

Marc NR-52F1 Marc Double Conversion NR-52F1 manufactured by a Japanese manufacturer. The multi-band receiver NR-52F1 with numerous AM and VHF ranges was sold under various names as a so-called export set, at radio fairs, you come across sets with the designation

mb

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T11:34:25+00:00

Maritime communications band The frequency range between the mediumwave broadcast band and shortwaves between 1605 - 3800 kHz is called maritime communications band; in German, this band is called „Grenzwelle“ (Border wave), in the English language areas, there is no special name for this portion of the electromagnetic wave spectrum, usually it is referred to as mediumwaves or shortwaves.

militaerische_empfaenger

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T18:34:16+00:00

E41Military radio receivers, which were often also used in commercial operations, or commercial sets that were adapted for military use, can be found in the Military Receivers section. Here you will find description of some sets from my collection, which in respect to sets from foreign countries is far from beeing complete.

militaerisches_geraet_deutschland

Anonymous (anonymous@undisclosed.example.com) — 2024-09-27T19:34:44+00:00

Equipment of the German Armed Forces The equipment of the German Reichswehr and, in the years of the Second World War, of the German Wehrmacht were made by the most important German manufacturers of communications equipment and usually bear abbreviations corresponding to the purpose of use.

militaerisches_geraet_frankreich

Anonymous (anonymous@undisclosed.example.com) — 2022-08-20T13:31:14+00:00

Equipment of the French Armed Forces The equipment of the French armed forces (Forces armées françaises) is listed in this section. In the first years, mainly French-made equipment was used. After the end of the Second World War, with the integration of the French units into NATO, NATO equipment was also used in France. Some American surplus equipment was also used by government agencies after being refurbished with French front panels, others were licence production with french front panel …

militaerisches_geraet_grossbritannien

Anonymous (anonymous@undisclosed.example.com) — 2024-09-27T20:24:27+00:00

Equipment of the Armed Forces of Great Britain From 1929 to 1948, the radio sets of the United Kingdom Armed Forces bore designations along the lines of „Wireless Set No.XX „. Nomenclature of United Kingdom Military Material Nomenclature of the earliest equipment

militaerisches_geraet_italien

Anonymous (anonymous@undisclosed.example.com) — 2022-08-20T13:32:11+00:00

Equipment by the Italian Armed Forces The equipment of the Italian armed forces is listed in this section. In the first years, mainly Italian-made equipment was used. After the end of the Second World War, NATO equipment was also used in Italy. Some American surplus equipment was also used by government agencies after being refurbished and Italian front panels installed.

militaerisches_geraet_schweiz

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T07:37:39+00:00

Swiss Army receivers In the early days of radio communications, receivers produced by Telefunken, Berlin were mainly procured for the Swiss Armed Forces. With the advent of World War II, more Swiss-made equipment was introduced, such as superhet receivers from Autophon and Zellweger.

militaerisches_geraet_usa

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T18:19:56+00:00

U.S. Armed Forces equipment The wireless equipment of the U.S. Armed Forces usually bear designations for the set itself and designations for equipment sets consisting of various individual units, such as complete radio stations. American equipment was widely used in many Allied countries and throughout Western Europe after the end of World War II, when U.S. equipment was sold cheaply as surplus.

modes

Anonymous (anonymous@undisclosed.example.com) — 2021-04-16T19:50:18+00:00

mr73b

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T14:53:58+00:00

Minix MR-73B Imported by Ricofunk, Richter & Co., Hannover. The transistorised Minix MR-73 and its successor MR-73B were manufactured in Japan and imported into the German-speaking countries by Richter & Co. Thanks to its price-performance ratio, it was a popular entry-level receiver.

msr-2

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T15:02:21+00:00

Drake MSR-2 Manufactured by R. L. Drake.\ Also distributed as DEBEG 7202, Hagenuk EE334, SAIT MR 1415, CRM 3928 The marine radio receiver Drake MSR-2 was introduced in 1977. The set seems to be derived from the receivers of the R-4 series, the set had a synthesizer for the 1

national_panasonic

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T09:49:08+00:00

netzbetrieb

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:23:50+00:00

Mains operation While the earliest wireless equipment was powered by accumulators and plate batteries, equipment that could be operated from mains current soon became available for use at home. According to the multitude of mains voltages used in Central Europe, voltage switching was often provided for high-quality receivers; usually the voltage

noise_blanker

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T09:18:56+00:00

Noise Blanker The noise blanker or noise limiter is used to suppress or reduce noise from motor ignition sparks or an electric fence. In the simplest circuit only two anti-parallel diodes (two semiconductor diodes or two systems of a double diode tube) are used. In case of voltage peaks, one or the other diode becomes conductive and the disturbing crackle is suppressed.

noise_limiter

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T13:11:07+00:00

Noise Limiter The noise limiter is a circuit to reduce man made noise interfering with (AM) broadcast signals. In the simplest way, it just consists of two anti-parallel diodes (two semiconductor diodes or two systems of a duo diode valve). In case of voltage peaks, one or the other diode becomes conductive and the disturbing crackle is suppressed.

nordmende_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T11:33:43+00:00

Nordmende portable receivers The German radio manufacturer Nordmende had a good reputation not only for his tube-equipped home radios but also for transistor travel radios. After the introduction of the Globetrotter in 1967, Nordmende became one of the major German manufacturers of world receivers. The developers missed to stop into digital technology in the 1980s and Nordmende lost a lot of favour among shortwave listeners with its purely analogue shortwave radios.

nordmende

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T18:01:20+00:00

Nordmende The German radio manufacturer has a long tradition of manufacturing tube-equipped domestic radios. After the introduction of the Globetrotter in 1965, it became one of the important German manufacturers of world band receivers. The developers missed the transition to digital technology and Nordmende lost a lot of favour with shortwave listeners with its still analogue shortwave radios.

notch_filter

Anonymous (anonymous@undisclosed.example.com) — 2021-06-04T11:15:26+00:00

notch

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T09:21:59+00:00

Notch - Filter [Notch - Filter] With the notch filter, an interfering whistling signal can be selectively suppressed. With some sets, the notch filter acts on the radio frequency level; with others, a whistling signal is eliminated on the audio signal level. After switching on, the knob of a variable notch filter must be turned sensitively until the whiste disappears. The AOR 7030 has an automatic notch function; the receiver automatically detects a disturbing whistling tone and fades it out.

nrd-1

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T15:56:59+00:00

JRC NRD-1E Manufactured by the Japan Radio Company. The NRD-1E is an all wave receiver designed for maritime and commercial use, with a design quite similar to the Collins 51J-4. [JRC NRD-1E] Technical data * Principle: Triple conversion superhet below 7 MHz, Double conversion above 7 MHz, IF kHz. * Operation modes: A1 with BFO, SSB, AM (A3) * Frequency range: 90 kHz - 30

nrd-345

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T12:39:39+00:00

JRC NRD-345 Manufactured by Japan Radio Co., Tokyo. With its semi-professional receivers, Japan Radio Co. Ltd. (JRC) got an excellent reputation among many shortwave listeners and also professional monitoring services. With the NRD-345 model, JRC designed an entry-level receiver with excellent reception performance and a price range that somewhat meets the needs of the ambitious amateur. Unfortunately, that was all, no further receivers of the NRD-3xx series were released.

nrd-505

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T16:27:26+00:00

JRC NRD-505 Manufactured by Japan Radio Co., Tokyo. Known as a manufacturer of commercial receivers, especially in maritime communications, the NRD-505 was Japan Radio Corp.s first receiver in a price range adapted to the amateur radio market launched in 1977. The NRD-505 soon had many enthousiasts due to its excellent receiver concept and the superior performance.

nrd-515

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T16:57:27+00:00

JRC NRD-515 Manufactured by Japan Radio Co., Tokyo As a renowned manufacturer of shortwave receivers, transmitters and transceivers used primarily in maritime radio communications, the Japanese company Japan Radio Company launched their first receiver tailored to the budget of an amateur in 1977, nevertheless with an RF design corresponding to the company's reputation and manufactured in professional quality. The

nrd-525

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T17:36:47+00:00

JRC NRD-525 Manufactured by Japan Radio Co., Tokyo. After the predecessor model, the all wave receiver NRD-515 had already given the Japanese manufacturer Japan Radio Co. an excellent reputation, the NRD-525 improved the companys reputation. The NRD-525 which was built in larger numbers, was widely used by shortwave listeners and is still frequently offered on the second-hand market.

nrd-535

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T12:26:31+00:00

JRC NRD-535 Manufactured by Japan Radio Co., Tokyo. 5 years after the introduction of the extremely successful station receiver NRD-525, the Japanese manufacturer JRC, which got an excellent reputation in the field of amateur and maritime radio, introduced a successor, the

nrd-545

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T12:31:35+00:00

JRC NRD-545 Manufactured by Japan Radio Co., Tokyo. In 1998, the Japan Radio Company launched a new dream receiver that soon became the reference receiver among shortwave listeners: the NRD-545 is equipped with DSP for the first time: the RF signal is digitised and digitally processed - the purchase of high-quality RF filters now no longer depends on your wallet, the filters are programmed electronically.

nrd-1107

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T16:10:28+00:00

JRC NRD-1107D Manufactured by Japan Radio Co., Tokyo. The NRD-1107D is an easy-to-use professionally built marine radio receiver, designed entirely for the needs of radio communication with stations on fixed frequencies. [JRC NRD-1107] Technical data * Principle: Double conversion, IF * Operation modes: A1, SSB, AM (A3) *

operating_modes

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T09:51:36+00:00

operation_modes

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T10:28:51+00:00

p100

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T13:41:44+00:00

Ground wave Direction Finder P 100 Ground wave direction finder P100, manufactured by Telefunken, Berlin. The Groundwave Direction Finder P 100 is a transportable battery-operated direction finder that can be used for radio reconnaissance and monitoring, but it is also used for surveys of direction finding sites and was also used in this role in the Swiss Army.

pan_international

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T07:45:21+00:00

Pan International Pan International is the trademark of a German importer of CB radios and world band receivers from the Far East. The CB radios were manufactured by Uniden. Well known are the multi-band receivers of the Crusader series, which cover various

pan_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-04-03T20:21:03+00:00

Portable Multiband Receivers by Pan International Probably manufactured by Uniden, imported by Pan International. Pan International imported a number of Japanese receivers that covered not only the shortwave bands but also some VHF frequency bands not approved for public reception. Depending on the legal situation, the possession of a shortwave receiver covering such frequency bands (for example above 26.1

panasonic_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-05-12T17:29:55+00:00

National Panasonic Portable receivers The Japanese company Panasonic, a part of the industrial group Matsushita, always concentrated on the home electronics sector, they first entered the shortwave world receiver market around 1965 with the T-100. With its sets, Panasonic often targeted the same customer segment as

panasonic_reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2021-03-29T20:46:46+00:00

Travel Radios from Panasonic Panasonic's first multiband travel radio appeared in 1980, the RF-085 competed with Sony's ICF-7600, had three barely spread shortwave bands from 2.25 - 18.6 MHz and it's price was only half of the Sony set. In Europe, the RF-788L was available in a comparable design with two shortwave and longwave ranges. With ten spread shortwave bands in addition to FM & MW, the

panasonic

Anonymous (anonymous@undisclosed.example.com) — 2021-03-29T20:31:16+00:00

Panasonic, National Panasonic National, National Panasonic, Panasonic are trademarks of domestic and hi-fi electronmics manufactured by the Matsushita Group in Osaka; in addition, the hi-fi brand Technics is a branch of the same company. Company history

partner_101

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T13:41:56+00:00

Telefunken partner international 101 Manufactured by Telefunken. The Telefunken partner international 101 portable receiver was introduced around 1975, it is an analogue world band radio with six spread shortwave bands in double conversion technology. [Telefunken partner international 101] Technical data

passband_tuning

Anonymous (anonymous@undisclosed.example.com) — 2021-06-04T11:14:55+00:00

pbt

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T09:14:19+00:00

Passband Tuning (PBT) [PBT] The passband tuning control is used to shift the passband curve of the IF filter in relation to the signal. In the case of an interference signal that is, for example, 3 kHz above the wanted signal, the passband curve can be moved downwards and the interfering signal is faded out.

pcr

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T09:46:20+00:00

Royal Signal Corps P.C.R. Manufactured by Pye Ltd Radio Works. The P.C.R. communications receiver developed by Pye was primarily used for radio reception as a troop entertainment receiver. It was manufactured in various versions, of which only the first had an internal electrodynamic loudspeaker; the later models used a

philips_reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2021-03-30T20:22:09+00:00

Travel portables from Philips Manufactured by Philips, Hilversum. Philips was an early manufacturer of transistorised portable and pocket radios. Around the same time when Sony's first microprocessor-controlled travel receiver came out, Philips released the D 2924, a travel receiver with microprocessor control, PLL synthesis and six station presets. In 1985, Philips launched two new portable sets, the comparably large travel radio

philips

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T15:23:20+00:00

Philips The Dutch company Philips was one of the first manufacturers of radio sets. The company had always focused on the consumer market, the few commercial communication receivers were not successful, the various world receivers never were really popular.

portable_receivers

Anonymous (anonymous@undisclosed.example.com) — 2021-03-16T12:36:28+00:00

preselector

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T06:44:27+00:00

Preselector The preselector is an additional resonant circuit located between the first RF amplifier stage and the first mixer stage in shortwave receivers. Due to the additional tuned circuit of the preselector, only a small fraction of the frequency band is fed on to the mixer; this measure improves performance in the vicinity of strong signals, mirror frequencies are rejected.

principle

Anonymous (anonymous@undisclosed.example.com) — 2021-04-16T11:09:02+00:00

prinzip

Anonymous (anonymous@undisclosed.example.com) — 2021-04-16T11:11:16+00:00

Technical principle You find informations on the technical principle on every receiver model page. Tuned Radio Frequency Receivers (TRF) In the Tuned radio frequency receiver (TRF), the radio frequency signal from the antenna is selected in a tuned circuit and fed directly to the demodulator. In some cases, the radio frequency is fed to a tuned amplifier stage before demodulation; in most cases, the audio frequency is amplified after demodulation to give more than just headphone reception.

qr-666

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T13:48:00+00:00

Kenwood QR-666 Manufactured by Trio-Kenwood. After the quite popular Trio - Kenwood 9R-59DS, Kenwood launched the QR-666, a transistorised shortwave receiver with a continuous coverage from medium wave to 30 MHz, optionally also covering the FM broadcast band. [Kenwood QR-666] Technical data *

quadruple_conversion

Anonymous (anonymous@undisclosed.example.com) — 2021-08-04T19:19:52+00:00

Quadruple conversion superhet In a Quadruple conversion superhet receiver, the radio frequency signal from the antenna input is converted several times, similar to the procedure in a double conversion superhet, but the additional frequency conversions are used for special features. For example, in the quadruple conversion superhets from

r-7

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T18:20:17+00:00

Drake R - 7 Manufactured by R. L. Drake. In 1979 Drake introduced the original version of the R-7, in the initial plans it was a receiver with analogue display covering the amateur radio bands. Soon the digital display became standard, and with the number of options integrated in the standard set, the catalogue price rose from US$1295 to US$1800:

r-7a

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T18:41:39+00:00

Drake R - 7 A Manufactured by R. L. Drake. In 1979 Drake introduced the original version of the R-7, which was initially designed as a receiver with analogue display covering the amateur radio bands. Soon the digital display was installed as a standard option, and with the number of options integrated as standard, the list price rose from US$1295 to US$1800:

r-8

Anonymous (anonymous@undisclosed.example.com) — 2021-06-07T20:13:34+00:00

Drake R - 8 Manufactured by R. L. Drake. In April 1991, Drake returned to the shortwave receiver market after an absence of many years with the announcement of the R - 8, the set was subsequently improved several times: * R-8: initial version: the different operation modes or IF filters could not be selected directly, by pressing a

r-8a

Anonymous (anonymous@undisclosed.example.com) — 2021-07-28T19:15:47+00:00

Drake R - 8 A Manufactured by R. L. Drake. In April 1991, Drake returned with the announcement of the R - 8 to the shortwave receiver market after an absence of many years, the set was subsequently improved several times: * R-8: initial version: the different operation modes or IF filters could not be selected directly, by pressing a

r-8b

Anonymous (anonymous@undisclosed.example.com) — 2021-07-28T19:25:10+00:00

Drake R - 8 B Manufactured by R. L. Drake. In April 1991, Drake returned with the announcement of the R - 8 to the shortwave receiver market after an absence of many years, the set was subsequently improved several times: * R-8: initial version: the different operation modes or IF filters could not be selected directly, by pressing a

r-220

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T20:06:44+00:00

R - 220 / URR Manufactured by Motorola for the U.S. Signal Corps. The R-220 is a heavyweight VHF receiver, not only its weight of 80 lbs make the set manufactured by Motorola a real boat anchor. [R-220 / URR] Technical data * Principle: single conversion superhet, IF * Operation modes: A1 with BFO, AM (A3), FM (F3) * Frequency range: 20 - 230 MHz in seven bands

r-300

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T14:07:11+00:00

Kenwood R-300 Manufactured by Trio-Kenwood. Technically, the Kenwood R-300 is very similar to its predecessor, the QR-666, but the front panel was cosmetically adapted to the requirements of the mid-seventies. [Kenwood R-300] Technical data * Principle: Double conversion, IF 4.034 MHz / 455 kHz * Operation modes: A1 with BFO,

r-388a

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T18:31:47+00:00

r-390

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T19:21:12+00:00

Collins R-390/URR Manufactured by Collins Radio Comp., Cedar Rapids. The R-390 is a military communications receiver that was introduced as a succossor to the Collins R-388 It was introduced in the mid-fifties; unlike the R-390A, the set is equipped with LC / coil filters and not the legendary mechanical filters.

r-390a

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T19:14:18+00:00

Collins R-390A/URR Manufactured by Collins Radio Comp., Cedar Rapids. The R-390A is a military communications receiver which was introduced as a replacement for the Collins R-388 in the mid-fifties. The original R-390 is equipped with coil filters, only the A version comes with the famous mechanical filters. The manual describes the receiver as a

r-392

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T17:06:16+00:00

Collins R-392 / URR Manufactured by Collins Radio Comp., Cedar Rapids. The Collins R-392 is a double / triple conversion receiver technically based on the legendary R-390, the design of which was reduced to a mechanically very compact format; the receiver was mainly used onboarf vehicles. The receiver R-392 was developed by Collins and also built by several contractors under licence.

r-600

Anonymous (anonymous@undisclosed.example.com) — 2021-12-28T10:25:01+00:00

Kenwood R-600 Manufactured by Trio-Kenwood. Three years after the introduction of the first shortwave receiver equipped with a digital frequency display, the venerable R-1000, the company Trio-Kenwood launched two successor sets, the more luxuriously equipped R-2000 and the plain R-600. In contrast to many other all wave receivers, the simpler version saved on many things that do not affect the peformance, and high-quality technology was used where it is necessary for a good reception result.…

r-648

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T19:29:48+00:00

R-648 / AN/ARR-41 Manufactured by Collins Radio Co., Cedar Rapids. The R-648 / AN/ARR-41 is a lightweight shortwave receiver technically based on the legendary R-390 dual / triple conversion receiver. The set was used in airplanes and its construction was improved to reduce weight.

r-820

Anonymous (anonymous@undisclosed.example.com) — 2021-12-28T10:04:47+00:00

Kenwood R-820 Manufactured by Trio-Kenwood. In the late 1970s, Kenwood released the R-820, an excellent amateur band receiver that also covered a couple of shortwave broadcast bands. [Kenwood R-820] Technical data * Principle: Double conversion superhet, IF 8.83 MHz / 455 kHz * Operation modes: A1, SSB, AM (A3) * frequency range: Amateur radio bands 160 - 10 m (in four sections); 49, 31, 25, 19 (WWV) and 16 m shortwave - broadcast bands.

r-1000

Anonymous (anonymous@undisclosed.example.com) — 2021-12-28T11:21:19+00:00

Kenwood R-1000 Manufactured by Trio-Kenwood. When the Kenwood R-1000 was launched in 1979, the experts were surprised by its technical design, which until then only could be found in much more expensive (semi-)professional communications receivers. In addition to an electronic octave filter preselection, the receiver had a PLL synthesis circuit and thus digital frequency processing and display. With this receiver, shortwave reception for the first time became child's play: switch the set on, s…

r-2000

Anonymous (anonymous@undisclosed.example.com) — 2022-11-25T19:45:15+00:00

Kenwood R-2000 Manufactured by Trio-Kenwood. The Kenwood R-2000 was launched in 1983 and was in competition with the more expensive JRC NRD-515 and Icom's R-70, an excellent receiver suffering from not quite intuitive operation. In contrast to the two sets mentioned, the R-2000 has ten electronic VFOs / memory locations, but the tuning steps for SSB and especially ECSS reception are a bit too coarse at 50 Hz.

r._l._drake

Anonymous (anonymous@undisclosed.example.com) — 2021-07-28T19:48:59+00:00

r107

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T17:50:59+00:00

Reception Set R. 107 Developed by SEE (SDRE) and Radio Transmission Equipment Ltd. For use with the medium and high power Wireless Set No.12 and No.33 transmitters and as a communications receiver, the British armed Forces had an urgent need for a powerful receiver in 1940.

r1155

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T05:25:25+00:00

Receiver R1155 Developed by Marconi on behalf of the Air Ministry. Manufactured by Marconi and E.K.Cole Ltd., also manufactured under contract by Plessey, Mullard and E.M.I. In 1939, Marconi was commissioned by the British Air Ministry to develop a modern shortwave system to replace the T1083/R1082 and T1115/R1116 shortwave communication systems, some of which were already outdated. The combination of receiver R1155 with direction finding adapter and transmitter T1154 subsequently became the s…

rca

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T17:24:43+00:00

RCA (Radio Corporation of America) The Radio Corporation of America was an electronics company founded after the First World War and a major manufacturer of commercial and military wireless equipment, electron tubes and household electronics. Company history

rds

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T07:53:22+00:00

RDS (Radio Data System) RDS (Radio Data System) is a method of transmitting text information through FM broadcasting stations. Usually, a station identification of eight alphanumeric characters is broadcast, which allows FM stations to be identified. However, only a few home and travel radios are RDS-compatible.

receiver_list

Anonymous (anonymous@undisclosed.example.com) — 2021-03-16T12:52:25+00:00

rechargeable_battery_battery_operation

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T09:52:38+00:00

reiseradios_deutschland

Anonymous (anonymous@undisclosed.example.com) — 2021-03-31T19:54:05+00:00

Travel portables from German brands With the internationalisation of production in the 1980s and 1990s, renowned German companies also began to put their own brand labels on products made in the Far East. A well-known example is the wide range of world receivers from

reiseradios_japan

Anonymous (anonymous@undisclosed.example.com) — 2021-03-31T19:58:15+00:00

Travel portables from Japanese manufacturers With the transition from valve to semiconductor technology, the Japanese radio industry experienced a huge boom. The small sets were light, compact and shockproof, which made importing them to Europe easy and cheap. In addition to the radios from large Japanese manufacturers, many inexpensive radios from companies that were less well-known in this country also were sold in Europe. Also listed are radios from well-known companies that offered only si…

reiseradios_schweiz

Anonymous (anonymous@undisclosed.example.com) — 2021-03-31T20:00:32+00:00

Travel radios from Swiss brands Some Swiss companies, mainly hardware discounters, began to put their own brand labels on products from the Far East in the 1980s. A well-known example is the equipment from Interdiscount („Intersound“) or the export receivers from Globephone.

reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2021-03-27T17:32:53+00:00

In this section, I would like to give You an overview over the small or miniature portable „world receivers“. Since 1985, the technical improvements were terrific. Even in 1980, a Panasonic DR-28 or Grundig Satellit 1400 have been advertised as travel radios, which „can be easily carried by the big handle and can be safely stored under your airplane seat

rf_gain

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T18:23:37+00:00

RF Gain On dedicated shortwave receivers, you will not only find the normal volume control (referred to as „Volume“ or „AF Gain“ or „Audio Frequency Gain“), but the gain can also be controlled before demodulation. The control of the high frequency gain is called

rf-9l

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T10:02:56+00:00

Panasonic RF-9L Manufactured by National Panasonic. Around 1984, Panasonic launched a miniature multiband travel radio: the RF-9L. This analogue set covers the shortwave bands from 49 - 16 m. [Panasonic RF - 9L] Technical data * Principle: single conversion, IF 455 kHz kHz / FM 10.7 MHz * Operating modes: A1 with BFO, AM (A3), FM (F3) * Frequency range: FM, LW, MW, 6 x KW ( 49 - 16 mb)

rf-788l

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T09:47:07+00:00

Panasonic RF-788L Manufactured by National Panasonic. Panasonic's RF-788L dating from 1979 is an example of an early portable radio with two shortwave ranges, it says „bandspread“, but in fact, the bands are still very narrow as the complete shortwave spectrum is covered by only two bands with a dial width of around 5 cm for each band.

rf-799

Anonymous (anonymous@undisclosed.example.com) — 2021-05-20T07:12:08+00:00

National Panasonic RF-799 LBS Manufactured by National Panasonic. As a competitor to Sony's legendary ICF-2001, Panasonic launched its RF-799LBS, a PLL synthesized receiver in portable radio format, around 1984. The set was no commercial success, as the Sony with its double superheterodyne circuitry outperformed it at a lower price.

rf-2200

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T18:13:42+00:00

Panasonic RF-2200 Manufactured by National Panasonic, Osaka. National - Panasonic RF-2200 is the designation of the Panasonic DR-22 variant sold in the USA. At the place of the DR22 model designation in the right upper corner of the front panel, you find „8 Band“ and below Model No. RF-2200; the mediumwave band is called

rf-2800

Anonymous (anonymous@undisclosed.example.com) — 2021-05-09T17:56:13+00:00

Panasonic RF-2800 Manufactured by National Panasonic, Osaka. The RF-2800 is the variant of the Panasonic DR-28 sold in the USA. [Panasonic DR-28]

rf-2900

Anonymous (anonymous@undisclosed.example.com) — 2021-05-11T05:23:07+00:00

Panasonic RF-2900 Manufactured by National Panasonic, Osaka. The U.S. version of the DR-29 is actually more comparable to the RF-2800 LBS with the blue-green fluorescent frequency display, but it lacks longwave coverage. The preselector, which does so much to enhance the large signal response in the

rf-3100

Anonymous (anonymous@undisclosed.example.com) — 2021-05-19T19:06:55+00:00

Panasonic RF-3100 Manufactured by National Panasonic, Osaka. RF-3100 is the designation of the U.S. variant of the Panasonic DR-31. [Panasonic DR-31]

rf-4800

Anonymous (anonymous@undisclosed.example.com) — 2021-05-12T17:28:42+00:00

National Panasonic RF-4800 Manufactured by National Panasonic, Osaka. The U.Svariant of the Panasonic DR-48 carried the designation RF-4800. [Panasonic DR-48]

rf-4900

Anonymous (anonymous@undisclosed.example.com) — 2021-05-12T17:45:15+00:00

National Panasonic RF-4900 Manufactured by National Panasonic, Osaka. Th U.S. variant of the Panasonic DR-49 carries the designation RF-4900; it comes without longwave coverage, which can be recognized by the presence of only one ferrite antenna on the rear. [Panasonic DR-49]

rf-6300

Anonymous (anonymous@undisclosed.example.com) — 2021-05-19T19:37:54+00:00

National Panasonic DR-Q63 / RF-6300L Manufactured by National Panasonic, Osaka. When the Panasonic DR-Q63 / RF-6300 was launched, large and impressive „world band receivers“ with a large carrying handle and long telescopic antennas were „en vogue“. [National Panasonic DR-Q63 / RF-6300L] Technical data

rf-8000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-19T20:21:24+00:00

National Panasonic RF-8000 Manufactured by National Panasonic. The Panasonic RF-8000 is one of Panasonic's „big ones“, in terms of price and weight it had even eclipsed the legendary Sony CRF-320. [National Panasonic RF-8000] Technical data * Principle: Double conversion, IF 1700 & 455 kHz / FM 10.7 MHz * Operation modes: A1 with BFO,

rf-b45

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T14:10:06+00:00

Panasonic RF-B45 Manufactured by National Panasonic. In 1991, Panasonic presented the RF-B45, a travel portable capable of demodulating single sideband signals. The „little brother“ of the travel receiver RF-B65 is similar in dimensions and technical specifications to the legendary

rf-b50l

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T11:44:53+00:00

Panasonic RF-B50L Manufactured by National Panasonic. Only shortly after Sony had presented its ICF-7600A and Toshiba the RP-F11L travel portables, Panasonic presented the double conversion superhet RF-B50 in 1984. In a similar arrangement to the analogue world receivers mentioned above, the relevant shortwave bands can be tuned on a bandspread dial with an accuracy of about 25 kHz, a small red LED acts as tuning indicator. The selection of two different IF bandwidths makes a significant diffe…

rf-b55

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T14:49:53+00:00

Panasonic RF-B55 Manufactured by National Panasonic. As a late successor of the RF-B45 or the RF-B60, Panasonic released the RF-B55 around 1999. The shortwave travel receiver is equipped with a PLL synthesizer and covers the shortwave range from 1711 - 29999 kHz. [Panasonic RF-B55] Technical data *

rf-b65

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T14:29:55+00:00

Panasonic RF-B65 / RF-B65DL Manufactured by National Panasonic. As a late successor to the RF-B60, Panasonic released the RF-B65 with SSB capabilities as a top-of-the-range travel portable around 1989. The shortwave travel radio is equipped with a PLL synthesizer and covers the shortwave range from 1615 - 29999 kHz.

rft_koepenick

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T16:05:32+00:00

RFT / Funkwerk Köpenick [RFT Funkwerk Köpenick]The VEB Kombinat Nachrichtenelektronik, Köpenik, was the main production site of premium communications receivers in the GDR. After German reunification, numerous sets from national offices made their way to the second-hand market. As far as performance is concerned, they can easily compete with receivers from famous West German and American manufacturers.

rk_641

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T19:42:21+00:00

Siemens RK 641 Manufactured by Sangean, Taiwan; distributed by Siemens. The Siemens RK 641 is technically equivalent to the microprocessor controlled Sangean ATS-803, the set distributed in Germany has a fancy gold and black colour scheme. [Siemens RK 641, sales brochure] Technical data * Principle: Double conversion superhet, IF 55.845 MHz

rk_651

Anonymous (anonymous@undisclosed.example.com) — 2021-04-20T19:47:38+00:00

Siemens RK 651 Manufactured by Sangean, Taiwan; distributed by Siemens. The Siemens RK 651 is technically equivalent to the microprocessor controlled Sangean ATS-803A, the set distributed in Germany has a fancy gold and black colour scheme. [Siemens RK 651, sales brochure] Technical data * Principle: Double conversion superhet, IF 55.845 MHz

rk_661

Anonymous (anonymous@undisclosed.example.com) — 2021-04-21T18:15:48+00:00

Siemens RK 661 Manufactured by Sangean, Taiwan. The world band receiver ATS-808, a microprocessor controlled travel radio with digital PLL frequency synthesis, was introduced around 1990 and was also sold as Siemens RK 661 or under the Uher brand. [Siemens RK 661] Technical data

rk_665

Anonymous (anonymous@undisclosed.example.com) — 2021-04-21T18:14:33+00:00

Siemens RK 665 Manufactured by Sangean, Taiwan. More popular than the travel radio RK 665 was its sister model RK 670, which came with a built-in cassette recorder. [Siemens RK 665] Technical data * Principle: Double conversion superhet, IF 49.995 MHz / 450 kHz / FM 10.7 MHz * Operation modes: A1 with BFO, AM (A3), FM (F3) * Frequency range: FM, LW, MW, SW (150 kHz - 30

rk_777

Anonymous (anonymous@undisclosed.example.com) — 2021-04-21T18:23:18+00:00

Siemens RK 777 Manufactured by Sangean, Taiwan. In 1996, Sangean presented an exceptionally sucessful receiver: the ATS-909. The almost identical set has been sold in Germany as Siemens RK 777; as the price tag of the receivers with the Siemens brand was much higher, then the Sangean original, only quite few sets have been sold.

rohde_schwarz

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T09:42:52+00:00

Rohde & Schwarz, Munich [Rohde & Schwarz Logo] The „Physikalisch-technische Entwicklungslabor Dr. Rohde & Dr. Schwarz“ was founded by Lothar Rohde and Hermann Schwarz, who had studied at the University of Jena. After mainly manufacturing physical measuring instruments during the war, the spectrum expanded to include the entire field of high-frequency technology and

royal_3000

Anonymous (anonymous@undisclosed.example.com) — 2021-12-25T20:05:12+00:00

Trans Oceanic Royal 3000 Manufactured by Zenith Radio Corp., Chicago, IL. In 1958, Zenith launched the Royal 1000, the first transistorised receiver from the famous Trans Oceanic series. The Royal 1000-D version also covered the longwave range. The Royal 3000, introduced in 1963, was the first T/O to feature FM broadcast band reception, but the 13 m shortwave band was omitted and the detachable wave magnet no longer found space in the cabinet, but it still could be ordered as an accessory.

royal_7000

Anonymous (anonymous@undisclosed.example.com) — 2021-12-25T20:36:38+00:00

Trans Oceanic Royal 7000 Manufactured by Zenith Radio Corp., Chicago, IL. In 1969 Zenith launched the Royal 7000, this receiver not only covered the FM broadcast band but also had a BFO to receive CW/SSB transmissions. [Trans Oceanic Royal 7000] Technical data * Principle: single conversion superhet, IF 10.7 MHz * Operation modes: A1 with BFO,

rp_8880

Anonymous (anonymous@undisclosed.example.com) — 2021-05-07T20:32:26+00:00

Sanyo RP-8880 Manufactured by Sanyo Electric Co. Ltd, Moriguchi (Osaka). Sanyo released the large and impressive RP-8880 in about 1978; a similar tuning technique like the Sony ICF-5900W with crystal calibrator and a calibrated fine tuning scale is used. [Sanyo RP-8880] Technical data * Principle: Double conversion superhet, IF 10.7 MHz / 455 kHz / FM 10.7

rr-1

Anonymous (anonymous@undisclosed.example.com) — 2022-12-26T15:27:38+00:00

Drake Reserve Receiver RR - 1 Made by R. L. Drake.\ Also sold as Debeg 7220, Hagenuk EE421, SAIT MR1541, ITT Mackay Marine 3022A or CRM 3702. For use in maritime radio, a professional version of the popular receiver based on the SPR-4 was available from Drake after 1973. The Drake RR-1 was sold as a 19-inch rack-mount unit or in a tabletop case and covered the maritime shortwave ranges, so it did not have a continuous frequency coverage. Continuous reception is possible as with the

rs-6

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T18:18:10+00:00

RS-6 (Miniature Transceiver) RS-6, developed with the technical assistance of the CIA and manufactured by Motorola. With the technical assistance of the CIA, a miniature modular radio was developed around 1951/52; this set was used by agents, among others.

russische_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-04-04T08:15:34+00:00

Portable receivers from various Russian manufacturers In the seventies and eighties, Russian multiband receivers also came onto the market in Germany and Switzerland - partly via the then still existing German Democratic Republic, partly via different ways, with the goal of obtaining foreign

s-meter

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:20:09+00:00

S-Meter (Signal strength meter) [S-Meter] Moving coil meters have been used to indicate signal strength since the early days of radio communications. Many multi band receivers have a signal strength meter to give it a professional touch. Cheap sets have simple instruments with, for example, a 0 - 5 scale, more expensive receivers come with an instrument displaying S-units and sometimes, these instruments are even calibrated. Only with calibrated S meter, the field strength readings are usable.…

sangean_reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2021-03-31T18:08:47+00:00

Travel portables from Sangean Manufactured by Sangean, Chung Ho City, Taipei Hsien 235, Taiwan. The Taiwanese manufacturer Sangean first attracted attention with small travel radios in analogue technology, which were sold worldwideby large electronics discounters under various brand names.

sangean

Anonymous (anonymous@undisclosed.example.com) — 2021-04-19T19:36:08+00:00

Sangean, Chung Ho City, Taiwan [Sangean Logo] In the 1980s, Sangean launched a whole range of compact travel receivers, from simple analogue sets to PLL dual conversion sets with many features. In Germany, the travel portables sold under Siemens brand usually originated from Sangean's production and were only fitted with an elegant black - gold cabinet - in contrast to the

sanwa_6090_df

Anonymous (anonymous@undisclosed.example.com) — 2021-05-07T11:27:39+00:00

Sanwa 6090 DF Miramo 6090 DF
. Manufactured by Sanwa, Japan. The Sanwa 6090DF is a double conversion superhet that was sold at a comparably low price in the early 80ies. Unlike many other low budget sets, it already had a digital frequency display. The choice of components used and the circuit design are reminiscent of receivers from Matsushita, the

sanyo

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T07:10:10+00:00

Sanyo Electric Co. Ltd. [Sanyo] Sanyo Electric Co. Ltd. is a major Japanese manufacturer of home electronics, as well as household appliances and air conditioners. However, only a few shortwave receivers worth mentioning were manufactured under the Sanyo brand.

satellit_205_amateur

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T09:39:09+00:00

Grundig Satellit 205 Amateur Manufactured by Grundig, Fürth. The German radio manufacturer Grundig presented its first real world band receiver in 1964. The Satellit 205, a portable single conversion receiver, was the first set in Grundig's successful series of world band receivers, which came to an end in 1996 with the Satellit 700.

satellit_205

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T09:39:31+00:00

Grundig Satellit 205 Manufactured by Grundig, Fürth. The German radio manufacturer Grundig presented its first real world band receiver in 1964. The Satellit 205, a portable single conversion receiver, was the first set in Grundig's successful series of world band receivers, which came to an end in 1996 with the Satellit 700.

satellit_208

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T15:16:48+00:00

Grundig Satellite 208 Manufactured by Grundig, Fürth. Grundig took a technical step when the Stallit 208 was introduced in 1968, the new set was a double conversion superhet, in the now vertically oriented turret tuner, two band ranges were covered. Technical data

satellit_210

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T16:13:15+00:00

Grundig Satellite 210 Manufactured by Grundig, Fürth. The Satellit 210, introduced in 1969, not only had got a licence for maritime communications use but also featured improved selectivity and linearity in the shortwave bands. This set was also built in small numbers in an

satellit_300

Anonymous (anonymous@undisclosed.example.com) — 2021-05-04T16:08:14+00:00

Grundig Satellit 300 Manufactured by Grundig, Fürth. In 1983, in the wake of the Sony ICF-2001, Grundig launched the first „Satellit“ receiver with microprocessor control. However, the Satellit 300 was only a single conversion superhet and proved mediocre performance on the shortwave bands at a considerable price tag. The set was accused, it should better have assigned a

satellit_400

Anonymous (anonymous@undisclosed.example.com) — 2021-05-04T16:03:40+00:00

Grundig Satellit 400 Manufactured by Grundig, Fürth. After the presentation of the not very convincing Satellit 300 (it was considered to be the worst set in the Grundig Satellit family), Grundig's developers worked hard to present a successor with all the features that the 300 had lacked. The Satellit 400 was launched in 1986 and was produced until 1989.

satellit_500

Anonymous (anonymous@undisclosed.example.com) — 2024-06-20T17:22:09+00:00

Grundig Satellit 500 Manufactured by Grundig, Fürth. As a successor to the Satellit 400, Grundig launched the Satellit 500 in 1989, the set was produced until 1991. Due to band restrictions of the shortwave band in Germany, the Satellit 500 is available in several variants: The

satellit_600

Anonymous (anonymous@undisclosed.example.com) — 2021-05-04T19:30:47+00:00

Grundig Satellit 600 Manufactured by Grundig, Fürth. The last large format shortwave receiver in the Grundig Satellit series, the Grundig Satellit 600 was introduced in 1983. It has an intermediate position between the old large analogue radios and the microprocessor controlled travel receivers with PLL synthesis. Its successor, the Satellit 650, was cosmetically revised and underwent only minor technical changes, e.g. the addition of a connector for a longwave direction finding antenna, so th…

satellit_650

Anonymous (anonymous@undisclosed.example.com) — 2021-05-04T20:02:02+00:00

Grundig Satellit 650 Manufactured by Grundig, Fürth. The Grundig Satellit 650 is a cosmetically revised Satellit 600, which underwent only minor technical changes, e.g. the addition of a connector for a longwave direction finding antenna, so that even this receiver got an approval for maritime communications. To conclude the series of large format shortwave receivers, Grundig released the Satellit 650 in a

satellit_700

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T11:43:47+00:00

Grundig Satellit 700 Manufactured by Grundig, Fürth. After the bulky shortwave receivers from the Grundig Satellit series in the „battleship format“,Grundig presented a set in 1989 that had a size like the „small“ Satellit 400, but whose performance was superior. This receiver, called

satellit_750

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T12:17:48+00:00

(Grundig USA) Satellit 750 Satellit 750 by Grundig USA resp. Lextronix / Etón; developed by Lextronix, manufactured in China (Tecsun?). Like the other „Satellit“ receivers with model numbers above 700, the set was developed by Lextronix / Grundig USA and was not sold outside the USA with the

satellit_800

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T12:21:28+00:00

(Grundig USA) Satellit 800 Satellit 800 by Grundig USA, resp. Etón / Lextronix; developed by Lextronix, manufactured by Tecsun in China. As a successor in the tradition of the German shortwave receiver Satellit 650, Grundig USA / Etón developed a set in cooperation with the development team of

satellit_900

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T11:47:38+00:00

Satellite 900 Satellite 900, developed by Grundig. Grundig presented the Satellit 900 as the new flagship of the world band receiver series and successor to the Satellit 700 at the 1995 radio fair in Berlin. The set was only produced in a small series and some fame due to delays and technical problems. Before series production could be initiated,

satellit_1400

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T20:22:42+00:00

Grundig Satellit 1400 Manufactured by Grundig, Fürth. The Satellit 1400 was the successor of the Satellit 3000/3400 series; it looks like a younger brother, but has an LCD display instead of the LED frequency display. The technical leap is greater than it appears: With the Satellit 1400 and its big brother

satellit_2000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T17:00:04+00:00

Grundig Satellit 2000 Manufactured by Grundig, Fürth. After the Grundig Satellit 208 as the first world band receiver from Grundig to use double conversion was launched in 1967, the turret tuner of the Satellit 2000, which was introduced in 1973, was now arranged horizontally, in contrast to its predecessors

satellit_2100

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T17:32:05+00:00

Grundig Satellit 2100 Manufactured by Grundig, Fürth. After the Grundig Satellit 208 was launched in 1967 as the first world band receiver from Grundig using the double cconversion technology. The turret tuner of the Satellit 2000, which was introduced in 1973, was now arranged horizontally, in contrast to the predecessors

satellit_2400

Anonymous (anonymous@undisclosed.example.com) — 2021-09-18T19:06:29+00:00

Grundig Satellit 2400 Manufactured by Grundig, Fürth. The eighties were years of big radios, besides the ghetto blaster cassette recorders, the Satellit 2400 also is quite impressive. Thanks to its stereo capability with two speakers, it is even bigger than the somewhat older

satellit_3000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-03T19:42:52+00:00

Grundig Satellit 3000 Manufactured by Grundig, Fürth. In 1977, Grundig launched the first receiver from the „Satellit“ family with a digital frequency display. Grundig stayed with the proven receiver design: a turret tuner to switch the shortwave bands, switchable band spread for the broadcast bands, single conversion on the low frequencies, double conversion in the shortwave bands above 5

satellit_3400

Anonymous (anonymous@undisclosed.example.com) — 2021-05-03T20:40:16+00:00

Grundig Satellit 3400 Manufactured by Grundig, Fürth. With the Grundig Satellit 3000 Digital, Grundig launched the first world band receiver with a digital frequency counter in 1977; a frequency counter and a BFO for SSB reception was added to the predecessor set Satellit 2100. In the following year, the receiver was cosmetically revised and remained the flagship of Grundig's shortwave receiver range until 1982.

satellite_205_amateur

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T09:36:17+00:00

satellite_205

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T08:34:17+00:00

scr-551b

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T18:31:13+00:00

Adcock - SCR-551 Direction Finder Manufactured for the U.S. Signal Corps by Press Wireless Inc. A semi-transportable Adcock direction finder was developed for the U.S. Signal Corps in 1942. A rotating shelter with the direction finder receiver was mounted on a tower; the operator rotated around its axis while taking bearings sitting in the shelter.

selectivity

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T09:23:39+00:00

Selectivity Selectivity refers to the ability of a receiver to separate one signal from another signal on an adjacent frequency without interference or with acceptable intelligibility. The selectivity is specified in the technical data of a receiver as the bandwidth outside of which a signal on an adjacent frquency drops by -6 dB and sometimes by -60 dB. If there is a low value even for -60 dB given, this will indicate a high-quality filter with steep filter skirts.

selektivitaet

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:28:35+00:00

selena_b-212

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T18:34:49+00:00

Selena B-212 Manufactured by Tento, Minsk Radio Works, USSR. The different models of the multi-band receivers „Selena“ were probably developed at VEF in Lithuania and then produced by Minsk Radio Works, the manufacturer's name on the back is TENTO.

sensitivity

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T12:33:47+00:00

Sensitivity The receiver sensitivity, which is listed in the technical specifications of a receiver, indicates the signal strength at the antenna socket from which a signal is intelligible. Usually, the sensitivity has different specifications depending on the operation mode; the technical documentation of the classic receivers often gives da descripton how the measurements were done.

sg-789

Anonymous (anonymous@undisclosed.example.com) — 2021-04-19T20:15:37+00:00

Sangean SG-789L Manufactured by Sangean, Taiwan. The analogue multiband travel radio with horizontal dials for bandspread shortwave bradcast bands was presented from Sangean in 1988, and with the Siemens brand, the same was sold as RK-621. Variants: * SG-789L / Siemens

shokai_nr-25f1

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T13:55:10+00:00

Shokai NR-25F1 Shokai NR-25F1, manufactured by Japan 508 code company (according to MITI New Hope Jitugyou Co.). The Shokai NR-25F1 multiband receiver is a Japanese multiband receiver that was traded as an export receiver thanks to its coverage of the

sidebar

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T10:27:00+00:00

---------- Travel Portables Portable Receivers Tabletop Receivers Commercial Receivers Boatanchors Military Receivers ---------- Shortwave Reception Radio Teletype Radio Repair Workshop ---------- Receiver List Manufacturer Technical Manuals ----------

siemens_reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2021-03-31T18:30:41+00:00

Travel portables from Siemens Manufactured by Sangean, distributed under the Siemens label. Mainly in Germany, the travel receivers from Sangean's factories, which were popular because of their favourable price-performance ratio, were introduced carrying the Siemens label. Siemens representatives at trade fairs emphasized, that the sets carrying the Siemens label were technically improved - but most probably, the improvements were mainly about the beautiful black and gold design. In any case, …

siemens

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T09:45:03+00:00

Siemens and Halske, Berlin The company Siemens & Halske was founded in 1847 by Werner Siemens and Johann Georg Halske in Berlin, After a few years, Siemens had an increasing importance in the construction of printing telegraphs, but then also in the development of telegraph lines and submarine cables, generators and power stations and later in traffic engineering.

signal_processing

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T12:00:03+00:00

Signal processing With simple radio sets, only the frequency and the volume can be adjusted. High-quality „world receivers“, semi-professional and professional shortwave receivers, have various possibilities of improving a weak signal and making it intelligible.

signal_strength_indicator

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T10:14:21+00:00

Signal strength indicators With simple receivers, tuning must be done „by ear“ for maximum volume. As early as the 1930s, signal strength was indicated by measuring instruments to facilitate tuning for radio station operators. * Light-emitting diode

signalbearbeitung

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:54:18+00:00

signalstaerkeanzeige

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:52:50+00:00

single_conversion_superhet

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:31:40+00:00

single_conversion

Anonymous (anonymous@undisclosed.example.com) — 2021-04-16T11:10:56+00:00

single_sideband

Anonymous (anonymous@undisclosed.example.com) — 2021-04-19T19:23:14+00:00

smaf_b

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T15:28:12+00:00

Rohde & Schwarz SMAF (BN 41409) Signal generator for AM and FM, type SMAF, BN 41409, manufactured by Rohde & Schwarz, Munich. The receiver measuring transmitter SMAF BN 41409 is the latest development stage of the legendary R&S signal generator SMAF. The set provides

smaf

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T15:12:20+00:00

Rohde & Schwarz SMAF (BN 41402) Signal generator for AM and FM, type SMAF, BN 41402, manufactured by Rohde & Schwarz, Munich. [SMAF, BN 41402] Technical data * Principle]]: Signal generator, * Operation modes: AM, FM * Frequency range: SW, VHF (10-17 / 16-28 / 26-47 / 45-80 / 78-135 / 132-216 MHz) * Frequency display: Analogue dial * Frequency memory: none

smda

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T15:54:04+00:00

Rohde & Schwarz SMDA BN 41314 Manufactured by Rohde & Schwarz, Munich. The signal generator SMDA with its analogue frequency display can be expanded with the SMDF/SMDA frequency controller with a digital frequency display and with a high power measurement adapter to form a complete wireless measuring system.

smfa

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T15:40:18+00:00

Rohde & Schwarz SMFA BN 41300 Manufactured by Rohde & Schwarz, Munich. Signal generator with integrated AF generator, the very heavy workshop equipment has the same extra-wide format as the legendary EK07 receiver from Rohde & Schwarz and does not fit the standard 19

smfp

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T16:07:18+00:00

Rohde & Schwarz Mobile Tester SMFP Manufactured by Rohde & Schwarz, Munich. The Mobile Tester SMFP is a compact, complete radio tester from Rohde & Schwarz. In the SMFP version, it is fully equipped, in the SMFS version, some functions are only available as options. The set allows receiver and transmitter measurements, partially automated tests and can be remote controlled from a computer.

sony_corp

Anonymous (anonymous@undisclosed.example.com) — 2021-05-31T19:11:49+00:00

[Sony] Sony Corporation, Tokyo The Japanese home electronics company was founded in Tokyo in 1946 and developed into one of the most important manufacturers of radio and television sets, digital and video cameras and was a pioneer in technological miniaturisation.

sony_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-12-25T17:45:52+00:00

Sony Portable Receivers Manufacturer Sony Corporation, Tokyo Over many years, Sony held a large market share with its sets. Sony set milestones again and again, like in the development of the Walkman & video camcorders, but also spoiled the shortwave listeners for years with a good number of receivers, from the miniaturised matchbox-sized sets up to the early heavy-weight tabletop receivers, but Sony never aimed at the market of commercial communication receivers nor at the amateur radio marke…

sony_reiseradios

Anonymous (anonymous@undisclosed.example.com) — 2021-04-27T19:17:35+00:00

[Sony] Sony's ICF-2001 was a milestone among travel shortwave receivers, the first microprocessor-controlled portable shortwave receiver that not only featured digital frequency display but also a direct frequency input keypad and could store 6 frequencies! This receiver was not only

sony

Anonymous (anonymous@undisclosed.example.com) — 2021-04-21T19:33:26+00:00

[Sony] Sony Corporation, Tokyo The Japanese electronics company was founded in Tokyo in 1946, it became one of the most important manufacturers of radio and television sets, digital and video cameras and was a pioneer in miniaturisation. Company history

sp_-_600_-_variants

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T20:54:32+00:00

Hammarlund SP-600-JX - Variants Manufactured by Hammarlund Mfg. Co., New York NY. The SP-600 was produced over several years in a big number of variants. For an overview of the variants, see the table in „Shortwave Receivers Past & Present“ by Fred Osterman or the original version of the list compiled by Les Locklear at

sp_-_600

Anonymous (anonymous@undisclosed.example.com) — 2024-09-21T20:31:20+00:00

Hammarlund SP-600-JX / Super Pro SP-600 Manufactured by Hammarlund Mfg. Co., New York NY. The Super Pro / SP-600 is the latest set in Hammarlund's Super Pro series, it was was mainly produced from 1951 to 1961 and there exists a large number of SP-600 variants for the military and civilian market.

squelch

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T09:38:27+00:00

Squelch In the FM mode, during transmission pauses, an annoying hiss can be heard on unoccupied frequencies. In the commercial and military radio communications, where only short voice messages are transmitted, the constant noise can be annoying.

ssb

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T12:01:20+00:00

start

Anonymous (anonymous@undisclosed.example.com) — 2025-10-05T05:24:30+00:00

Welcome to the English language section of the updated website www.shortwaveradio.ch, I first concentrated on the German language section and try to find some time to gradually translate the content. www.shortwaveradio.ch was developed from the receiver section of my earlier website www.dr-boesch.ch; it had to undergo a major overhaul as search engines assign less impact to websites which are not responsive. So I changed it to a Wiki structure using

stations-empfaenger

Anonymous (anonymous@undisclosed.example.com) — 2021-04-04T08:52:42+00:00

In this section, you find descriptions of short wave communication receivers - usually general coverage sets covering the complete short wave frequency range up to 30 MHz. These so-called communication receivers or all wave receivers will receive stations from throughout the world, as long as you find suitable reception conditions with little RF noise in your surrounding, acceptable propagation conditions and sufficient transmitter power.

stationsempfaenger_japan_hersteller

Anonymous (anonymous@undisclosed.example.com) — 2021-12-26T14:55:00+00:00

Tabletop receivers from various smaller Japanese manufacturers In the seventies and nineties, several Japanese manufacturers of amateur radio equipment introduced a number of all-wave receivers, which were often distinguished by their low price and accessibility for modifications.

stationsempfaenger_von_aor

Anonymous (anonymous@undisclosed.example.com) — 2021-04-05T09:34:37+00:00

Tabletop receivers from AOR Manufactured by AOR Ltd, Tokyo. The Japanese company AOR was in earlier years known for its scanners and only in the late 1980s launched the AR2515 and AR3000 (A) scanner receivers in a flat tabletop cabinet, they covered the frequency range from 100 kHz to 1.5 and 2

stationsempfaenger_von_drake

Anonymous (anonymous@undisclosed.example.com) — 2021-04-05T09:43:52+00:00

Tabletop receivers by R. L. Drake Robert Lloyd Drake founded the R.L.Drake Company in 1943, which initially manufactured amateur radio accessories. After moving to Miamisburg OH, the 1-A was introduced in 1957 as the first shortwave receiver covering the amateur radio bands with very compact dimensions. Around 1960 - 1966, further receivers followed, like the

stationsempfaenger_von_icom

Anonymous (anonymous@undisclosed.example.com) — 2021-08-04T19:23:23+00:00

Icom tabletop receivers The company Inoue Electric Factory Company Ltd. was founded in 1964 and got a reputation for it's solid state amateur radio equipment, initially operating in the VHF range. After portable transceivers, Icom presented it's IC-R70 receiver in 1982. After gettings experience with the receiver circuitry of HF transceivers, Icom's first receiver R-70 was a quadruple conversion set which covered the range 100 kHz - 30

stationsempfaenger_von_jrc

Anonymous (anonymous@undisclosed.example.com) — 2021-04-05T16:40:12+00:00

Japan Radio Company tabletop receivers The Japan Radio Company had an excellent reputation for it's maritime communications equipment, until 1977, when JRC launched a line designed for the amateur radio market, offering cleanly manufactured professional technology at an acceptable price. The company immediately earned an excellent reputation among radio amateurs.

stationsempfaenger_von_kenwood

Anonymous (anonymous@undisclosed.example.com) — 2021-04-05T16:48:04+00:00

Tabletop receivers by Kenwood, Trio Kenwood Electronic Inc. The first shortwave receivers from Trio were in Europe also sold under the brands Jennen and Lafayette. The shortwave receiver 9R-59DS, launched in 1968, soon became very popular, the shortwave receivers

stationsempfaenger_von_lowe

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T17:12:19+00:00

Lowe tabletop receivers The English company Lowe Electronics initially sold amateur radio accessories and from the early 1980s offered a shortwave receiver from a Japanese manufacturer under its brand. The SRX-30 was a triple conversion receiver based on the Wadley circuit with 30 linear 1

stationsempfaenger_von_philips

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T18:54:27+00:00

Philips tabletop receivers The Dutch company Philips was not only one of the first manufacturers of electronic components in Europe, but also one of the first to mass-produce complete radio sets. Philips always concentrated more on the consumer market, in the commercial sector the few communication receivers were almost as unsuccessful as their different all wave receivers. The company always lacked a concept for the development of high grade shortwave receivers, their sets were often technical…

stationsempfaenger_von_realistic_dx_tandy

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T19:10:48+00:00

Station receivers from Realistic DX /Tandy In the stored of the American electronics discounter RadioShack, receivers from Japanese, Korean or Chinese manufacturers were sold under the brand RealisticDX, some of which had been slimmed down or modified in other ways. The earlier sets have similarities with receivers from

stationsempfaenger_von_yaesu

Anonymous (anonymous@undisclosed.example.com) — 2021-04-06T19:18:54+00:00

Yaesu Tabletop receivers Founded by a Japanese amateur radio operator, Yaesu initially produced transmitters for the amateur radio market. After the FRdx400 and FR-101 receivers, which only covered the amateur radio bands, Yaesu launched the FRG-7 in 1977. The fully transistorised triple conversion set was based on the

superhet

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T09:51:38+00:00

supernova

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T07:40:09+00:00

Blaupunkt Supernova Manufactured by Blaupunkt, Hildesheim, chassis 7.658.880. With the Blaupunkt Supernova, the Hildesheim company Blaupunkt was present with a veritable world band radio in a receiver segment that was dominated in Germany by sets from Grundig, Nordmende, Schaub-ITT and more and more by Japanese companies.

sw-8

Anonymous (anonymous@undisclosed.example.com) — 2021-07-28T19:35:30+00:00

Drake SW - 8 Manufactured by R. L. Drake. In 1994, Drake presented a portable shortwave receiver, this was a novelty from the renowned manufacturer of receivers for radio amateurs and shortwave listeners: the earlier Drake sets were not intended for mobile use. [Drake SW-8] Technical data

t1000_cd

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T13:36:09+00:00

Braun T1000 CD Manufactured by Braun, Frankfurt. In the mid-1960s, Braun released a world band receiver that caused a sensation due to its design and was popular with members of the diplomatic corps, especially in the follow-up version T1000 CD, it was used to listen to shortwave broadcasts from home.

t1000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-01T13:36:30+00:00

Braun T1000 Manufactured by Braun, Frankfurt. In the mid-1960s, Braun released a world band receiver that caused a sensation due to its design and was popular with members of the diplomatic corps, especially in the follow-up version T1000 CD, it was used to listen to shortwave broadcasts from home.

tabletop_receivers

Anonymous (anonymous@undisclosed.example.com) — 2021-03-29T18:16:28+00:00

techn.unterlagen

Anonymous (anonymous@undisclosed.example.com) — 2021-10-07T12:15:30+00:00

Technical Manuals In the meantime, much more manuals are available on the website (check for the german language model pages) then in this list here, it will take me some time to keep it up to date. C * Commander 6100DS: [Operating Instructions] D * Drake R-4B: [Techn. Manual] * Drake SSR-1: [Techn. Manual] G * Grundig Satellit 2400: [Bedienungsanleitung] * Grundig Satellit 2400:

telefunken

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T13:50:37+00:00

Telefunken, Berlin GmbH / AEG - Telefunken AG, Ulm [Telefunken Logo] Competing development groups from AEG and Siemens Halske joined forces in 1903 to form the „Gesellschaft für drahtlose Telegraphie mbH“, later Telefunken. It was founded as a competitor to the Marconi Corporation and not only united the parent companies

tfm-8600w

Anonymous (anonymous@undisclosed.example.com) — 2023-07-18T13:22:39+00:00

Sony TFM-8600W Manufactured by Sony Corporation, Tokyo. Some receivers are simply rare, so sometimes you can bid on an little known set at an online auction and find an absolute bargain. The Sony TFM-8600W was probably built in the late seventies, the receiver covers the FM broadcast band, medium wave, longwave for receiving radio beacons and the

tokyo_skylark_nr-52f1

Anonymous (anonymous@undisclosed.example.com) — 2021-05-07T11:00:56+00:00

Tokyo Skylark NR-52F1 Tokyo Skylark NR-52F1 produced by a Japanese manufacturer. The multi-band receiver NR-52F1 with numerous AM and also VHF ranges was sold under various names as a so-called export set. [Tokyo Skylark NR-52F1] Technical data * Principle: Double conversion superhet, ZF * Operation modes: A1 with BFO,

touring_cd_108_inside

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T13:18:44+00:00

ITT Schaub - Lorenz Touring CD 108 Manufactured by ITT Schaub-Lorenz. On more than one set I have come across, the angular gear drive of the tuning capacitor has become gummed up and the SW tuning won't move a millimetre. The Dismantling of the cabinet of the CD-108 to gain access to the tuning capacitor is not trivial:

touring_cd_108

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T13:07:07+00:00

Touring CD 108 Manufactured by ITT Schaub-Lorenz, Pforzheim. At the end of the 1970s, ITT - Schaub-Lorenz expanded its „Touring“ series of portable radios with double conversion set with analogue display, the Touring Professional 107, and a similar set with a switchable frequency counter, the Touring CD 108.

touroport_220

Anonymous (anonymous@undisclosed.example.com) — 2021-05-06T13:33:44+00:00

Touroport 220 Manufactured by ITT Schaub-Lorenz, Pforzheim. In 1983, ITT Schaub-Lorenz also presented a world band receiver in portable radio format with digital frequency synthesis. [ITT Touroport 220] Technical data * Principle: single conversion superhet, IF kHz / FM 10.7 MHz * Operation modes: AM (A3), FM (F3) * Frequency range: FM, LW, MW, 12 x SW (120 - 11 m) * Frequency display:

tr-8460

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T09:34:55+00:00

Sony TR-8460 Manufactured by Sony Corporation, Tokyo. With the Sony TR-8460, Sony had a very special set in their catalogues in the early 1970s; the TR-8460 aeronautical radio receiver only covered the aeronautical radio range of 108 - 136 MHz. [Sony TR-8460] Technical data

tragbare_empfaenger

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T13:25:16+00:00

[Panasonic DR 29] As an alternative to large domestic radios (the ones with the „piano keys“ and the green glowing „magic eye“) and the small transistor radios, designed to be carried with you on trips, portable sets with above average reception qualities have been designed in the sixties.

transceiver

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T09:26:20+00:00

Transceiver In a transceiver, a transmitter and a receiver are combined in one set; usually, the frequency oscilator is shared so that the transmission frequency is identical to the reception frequency. In combined transceiver systems, the transmitter output stages or output power are usually kept low to allow the set to be contructed in one cabinet, so for high transmission powers, a separate RF power amplifier must be used.

transistor_5000

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T09:38:52+00:00

Grundig Transistor 5000 Manufactured by Grundig, Fürth. The German radio manufacturer Grundig presented its first real world band receiver in 1964. The Satellit 205, a portable single conversion receiver, was the first set in Grundig's successful series of world band receivers, which came to an end in 1996 with the Satellit 700.

transmit_power

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T08:13:41+00:00

Transmit power Transmit power is the power of high-frequency transmitters. * Transmitter output power is the power emitted at the RF output of a transmitter * Radiated power or ERP (effective radiated power) is the radiated power in relation to a reference antenna, i.e. the antenna gain is included in the calculation here

transmitter_power

Anonymous (anonymous@undisclosed.example.com) — 2024-09-22T17:59:16+00:00

transmitter

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T05:30:10+00:00

Transmitter A suitable transmitter was offered for numerous receivers used by radio amateurs. A „RECEIVE - TRANSMIT“ switch on the receiver switches off or short-circuits the antenna input to protect the highly sensitive input stage when the transmitter is in operation.

transradio

Anonymous (anonymous@undisclosed.example.com) — 2022-12-27T14:40:28+00:00

Transradio 11 - 16 and 21 - 26 Manufactured by AEG - Telefunken. The long distance receiving system Transradio was sold in many different configurations. It was essentially based on the shortwave receivers E724 SW/2 or the very similar E863 Kw/2, which was additionally equipped with an option for locked operation with a 100 Hz channel spacing with fine tuning between the 100 Hz points.

travel_portables

Anonymous (anonymous@undisclosed.example.com) — 2021-03-16T12:37:43+00:00

trio-kenwood

Anonymous (anonymous@undisclosed.example.com) — 2021-12-27T14:15:05+00:00

triple_conversion_superhet

Anonymous (anonymous@undisclosed.example.com) — 2021-05-27T17:54:56+00:00

Triple conversion superhet In a triple conversion superhet, the RF signal coming from the antenna is converted to generate an intermediate frequency more then once, in contrast to the double conversion superhet, the conversion step is done three times. This technology is used in some sets with a very low third

triple_conversion

Anonymous (anonymous@undisclosed.example.com) — 2021-07-28T19:53:35+00:00

tv-7

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T11:03:26+00:00

Test Set Electron Tube TV-7(*)/U Tube testers TV-7/U and variants; made by various U.S. manufacturers in contracts for the Signal Corps. [Tube Tester TV-7B/U] Technical data * Principle: Tube tester * Operation modes: Tube tester with „Mutual conductance“ test Power supply * Mains operation: 115 V nominal, 103.5 - 126.5 V; 45 VA

u61b

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T09:54:38+00:00

Metrix U61B resp. U61C Tube testers Metrix U61B resp. U61C; manufactured by Metrix, F - Annecy. [Metrix U61] Technical data * Principle: Tube tester * Operation modes: Tube tester with DC voltage test Power supply * Mains operation: 110, 130, 220, 250 V; 110 resp. at full load 180 VA Dimensions

uhf

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T08:36:51+00:00

UHF Ultra High Frequency refers to frequencies in the range between 300 MHz (i.e. above the VHF band) and 3000 MHz. In German, this frequency range is also known as Dezimeterwellen. Broadcasting Broadcasting transmitters were never active in the UHF range. Some former UHF television channels are used today for

um-1

Anonymous (anonymous@undisclosed.example.com) — 2021-04-19T19:15:19+00:00

Battery UM-1 / D cell The UM-1 battery is also called D, R20 or Mono cell. The round battery with a diameter of 34.2 mm and a height of 61.5 mm is used in many portable radios. The nominal voltage of zinc-carbon batteries or R20 or of alkali-manganese

um-2

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:29:40+00:00

Battery UM-2 / Baby cell The UM-2 battery is also called C, R14 or Baby cell. The round battery with a diameter of 26.2 mm and a height of 50 mm is used in portable radios and torches. The nominal voltage of zinc-carbon batteries or R14 or alkali-manganese

um-3

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T15:42:34+00:00

Battery UM-3 / AA / Mignon cell The UM-3 battery is also called AA, R6 or Mignon cell. The round battery with a diameter of 14.5 mm and a height of 50.5 mm is used in many pocket travel radios. The nominal voltage of zinc-carbon batteries or R6 or

uniden

Anonymous (anonymous@undisclosed.example.com) — 2021-05-08T07:37:22+00:00

Uniden Uniden is a Japanese company that manufactured CB radios for well-known brands, Scanner receivers and some shortwave receivers and wireless telephones. Company history The Japanese company was founded in 1966 by Hidero Fujimoto as Uni Electronics Corp

vef_206

Anonymous (anonymous@undisclosed.example.com) — 2021-05-28T18:13:24+00:00

VEF 206 Manufactured by VEF Radio Works, Riga, Lithuania. Various multiband receivers were developed at VEF in Lithuania and produced mainly to be exported against hard currency. The sets differ slightly in design. [VEF 206] Technical data * Principle: Single conversion superhet, IF 465 kHz

vhf

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T20:13:48+00:00

VHF The term Very High Frequency refers to frequencies in the range from 30 MHz (i.e. above the shortwave band) to 300 MHz. In German, this frequency range is also known as Ultrakurzwellen. FM broadcasting band The VHF broadcasting band, which is commonly referred to as

vierfachsuper

Anonymous (anonymous@undisclosed.example.com) — 2021-08-04T19:20:51+00:00

wireless_set_no.12

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T16:55:39+00:00

Wireless Set No. 12 Used by the Royal Signal Corps. The British Wireless Set No.12 was developed in 1940/1, after a replacement for Wireless Set No.2 had already been considered in 1937. The transportable medium-power radio station replaced the Wireless Set No.2 and also replaced the Wireless Set No.1 and No.9 in many applications. For applications where higher transmission power was required to bridge longer distances, the set became Wireless Set No.12 HP (High Power) and

wireless_set_no.19

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T09:22:40+00:00

Wireless Set No. 19 Mark III Used by the Royal Signal Corps. The British manufacturer of radio receivers Pye developed a compact transceiver in 1941, which was widely used as Wireless Set No. 19. In the first version Mk I, the entire shortwave range of 2.5 - 6.25

wireless_set_no.31_afv_-_revision

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T16:43:52+00:00

Wireless Set No. 31 AFV Used by the Royal Signal Corps. The British Wireless Set No.31, which was to replace the small radios W.S.18, 68 and 46, was based on the technically closely related American set SCR-300-A (BC-1000). The first prototypes were ready at the end of 1945/46, production started in November 1946 and the set was delivered to the infantry between 1947 and 1949.

wireless_set_no.31

Anonymous (anonymous@undisclosed.example.com) — 2024-08-01T16:31:29+00:00

Wireless Set No. 31 AFV Used by the Royal Signal Corps. The British Wireless Set No.31 was developed as a lightweight manpack radio for communication between infantry units; the W.S.31 AFV (Armoured Fighing Vehicle) version was also intended to be installed in armoured cars and vehicles.

wireless_set_no.33

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T09:06:42+00:00

Wireless Set No. 33 Used by the Royal Signal Corps. The British Wireless Set No.33 was a successor of the Wireless Set No.12 from 1941/2 with its high-performance power amplifier in the same cabinet. The set includes a power supply unit with almost the same dimensions and weight, so it can be used as a vehicle or fixed station.

wireless_set_no.62

Anonymous (anonymous@undisclosed.example.com) — 2024-08-02T08:57:31+00:00

Wireless Set No. 62 Mark III Wireless Set. No. 62, developed by Pye, used by the Royal Signal Corps. The British radio manufacturer Pye developed the compact transceiver as a successor to the Wireless Set 22, which appeared heavy and bulky due to its design with a separate power supply unit. The W.S. 62, which was a combined transceiver, antenna tuner and power supply unit in one cabinet, was actually only intended as a transitional solution until the introduction of the Wireless Set. No. 42, …

xcr-30_fm

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T07:17:06+00:00

Barlow Wadley XCR - 30 FM Manufactured by Barlow's Television Co, P.O.Box 23, New Germany, Natal, Rep. of South Africa. Around 1970, a portable receiver was quite a sensation among shortwave listeners. Based on the Wadley Loop circuit, which was first used in the commercial English receiver

xcr-30

Anonymous (anonymous@undisclosed.example.com) — 2021-05-02T07:16:48+00:00

Barlow Wadley XCR - 30 (Mk 2) Manufactured by Barlow's Television Co, P.O.Box 23, New Germany, Natal, Rep. of South Africa. Around 1970, a portable receiver was quite a sensation among shortwave listeners. Based on the Wadley Loop circuit, which was first used in the commercial English receiver

xf2400

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T19:51:51+00:00

Silver XF2400 Developed by the Japanese company of Shin-Shirasuna Electric Corp., manufactured in ROC Taiwan. In the 1980s, with the emerging interest of a wider audience in international shortwave broadcasting, several low-cost travel could be found on the shelves of discount stores.

yacht_boy_100

Anonymous (anonymous@undisclosed.example.com) — 2022-09-16T10:05:59+00:00

Grundig Yacht Boy 100 Yacht Boy 100; manufactured by Grundig, Fürth. Technical Data * Principle: Single conversion, IF 460 kHz; 10,7 MHz * Modes: AM (A3), FM (F3) * Frequency range: FM, LW, MW, 6 x SW (49 - 16 m band) * Frequency dial: Analog dial * Frequency memories: none * Signal strength indicator: LED tuning indicator * Signal processing: * Features: * Sensitivity: AM (A3) / Selectivity: Power Supply

yacht_boy_120

Anonymous (anonymous@undisclosed.example.com) — 2022-09-16T10:04:37+00:00

Grundig Yacht Boy 120 Yacht Boy 120; manufactured by Grundig, Fürth. [Grundig Yacht Boy 120] Technical Data * Principle: Single conversion, IF 460 kHz; 10,7 MHz * Modes: AM (A3), FM (F3) * Frequency range: FM, LW, MW, 6 x SW (49 - 16 m band) * Frequency dial: Analog dial * Frequency memories: none * Signal strength indicator: LED tuning indicator * Signal processing: * Features: quartz clock / timer

yacht_boy_400_new

Anonymous (anonymous@undisclosed.example.com) — 2021-04-18T09:01:52+00:00

Grundig Yacht Boy 400 (new) Manufactured by Grundig, Fürth. The new variant of the Yacht Boy 400 appeared in 1994 and is a travel multiband radio with PLL synthesis and digital frequency display completely different from it's brother from 1980/1 carrying the same designation.

yacht_boy_400

Anonymous (anonymous@undisclosed.example.com) — 2021-04-16T19:51:07+00:00

Grundig Yacht Boy 400 (old) Yacht Boy 400; manufactured by Grundig, Fürth. When I saw this Grundig Yacht Boy 400 the first time, I felt quite irritated, as the new Yacht Boy 400, a completely different set came to my mind. This Yacht Boy is a compact single conversion travel radio with bandspread dial of the most common 6 shortwave bands. With the same designation

yacht_boy_450

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:49:54+00:00

Grundig Yacht Boy 450 Manufactured by Grundig, Fürth. The Grundig Yacht Boy is a somewhat improved successor to the Yacht Boy 400, the pocketbook-sized travel radio is equipped with a digital clock and a digital frequency display. [Yacht Boy 450] Technical data * Principle: single conversion, IF 460 kHz / 10.7 MHz

yacht_boy_500

Anonymous (anonymous@undisclosed.example.com) — 2021-09-18T19:33:29+00:00

Grundig Yacht Boy 500 Manufactured by Grundig, Fürth. Grundig intended to sell their world band receivers from the Satellit series to people living abroad who wanted to stay in contact with their home country as well as to short wave listeners, who like to tune in to signals from many different countries. For taking the set abroad on holiday trips, the Grundig Satellit double conversion receivers were usually much too bulky.

yacht_boy_600

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:32:24+00:00

Grundig Yacht Boy 600 Manufactured by Grundig, Fürth. The Yacht Boy 600 is a single conversion travel radio developed in the 1980s, which covers six major shortwave broadcast bands. Unlike the similar Yacht Boy 400, it is equipped with an analogue S-meter to indicate signal strength, but unlike the

yacht_boy_700

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T18:13:29+00:00

Grundig Yacht Boy 700 Manufactured by Grundig, Fürth. In the same year, when Grundig presented the first portable receiver with a PLL synthesized tuner, the Satellit 300, which got a few negative reports because of poor sensitivity and selectivity, Grundig brought out a single conversion superhet with digital frequency counter. This travel radio was slightly smaller and cheaper then the junior

yaesu

Anonymous (anonymous@undisclosed.example.com) — 2022-12-25T16:35:16+00:00

Yaesu Musen Company Ltd, Tokyo [Logo Yaesu] The Yaesu Musen Company was founded in 1956, it was a popular manufacturer of amateur radio equipment and had a range of popular general coverage receivers. Technical data Founded by a Japanese amateur radio operator in 1956, Yaesu initially produced transmitting equipment for the amateur radio market.

zellweger

Anonymous (anonymous@undisclosed.example.com) — 2024-08-03T06:58:30+00:00

Zellweger AG, Uster [Zellweger Logo]Zellweger was one the major manufacturers of wireless equipment for the Swiss Army starting in the years shortly before World War II and active well into the nineties. After a merger of the telecommunication business with Autophon and Brown Boveri, Zellweger focused later on textile technology.

zenith_portabelradios

Anonymous (anonymous@undisclosed.example.com) — 2021-04-04T08:47:19+00:00

Zenith Portable receivers In 1924, the "Zenith Radio Corp." emerged from the „Chicago Radio Laboratory“, producing TRF receivers until 1929 and then the first superhets. After the turmoil of the economic depression, the company quickly could recover. After the polar explorer McMillen had already carried a Zenith portable radio on his expeditions in 1925, he was given a prototype of a multi-band receiver in 1941, which Zenith had been developing since 1939 and which was distinguished by above-a…

zenith_radio_corp

Anonymous (anonymous@undisclosed.example.com) — 2021-12-25T19:49:54+00:00

Zenith Radio Corp. In 1941, the American company Zenith introduced the Trans Oceanic, a multi-band shortwave travel radio that preceded a whole series of high-quality world band receivers. In the 1970s, Zenith missed the boat on the introduction of digital shortwave receivers and production was discontinued.

zenith

Anonymous (anonymous@undisclosed.example.com) — 2021-06-05T13:24:48+00:00

Zenith Radio Corp. In 1941, the American company Zenith introduced the Trans Oceanic, a multi-band shortwave travel radio that preceded a whole series of high-quality world band receivers. In the 1970s, Zenith missed the boat of the transition to the era of digital shortwave receivers and production was discontinued.

zf

Anonymous (anonymous@undisclosed.example.com) — 2021-04-17T16:31:24+00:00

Intermediate frequency In a superhet or superheterodyne receiver, the signal coming from the antenna is mixed with the signal from a tunable oscillator, and subtractive mixing in the mixer stage tube produces the intermediate frequency. The intermediate frequency is amplified in one or more