R. L. Drake Company, Miamisburg, OH
MSR - 2 / Hagenuk EE-334
überarbeitet am 19.10.2010
Drake's maritime receiver MSR-2 has been introduced in 1977, it has certain
similarities to sets of the R-4 series, but it has an integrated 1 MHz segment
synthesizer instead of using separate quartzes for each band and a nixie tube
display with it's typical orange glowing characters.
As it's mainly used as commercial maritime receiver, Drakes MSR-2 comes as a 19 inch rack receiver, the mains connectors are found at the rear of the set, the MSR-2 accepts voltages of 120 or 220-240 volts and can be operated from 12 - 24 V DC by use of an inverter. Also at the rear of the receiver, You will find the connectors for AF signals and for the AF of the second band for independent side band reception. The RCA / chinch connectors for 50 kHz IF output, speaker AF output and muting as well as the SO-239 antenna socket do not really match a commercial grade receiver and might remember that the set's realtives are found in the high end amateur radio class.
The MSR-2 as a 19 inch rack model comes with dimensions of 480 x 133 x 380 mm
and a weight of 11,5 kg.
On the front panel, You find in the right upper area the very impressive nixie
tube digital frequency display with it's characteristic orange glow. Two rotary
switches let You select the 10 MHz and 1 MHz segments, You tune in the kHz and 0,1 kHz
digits with the large VFO knob; a mechanical lock prevents the receiver to be detuned,
when You find Yourself with Your vessel in a severe thunderstorm. In the right lower corner,
You find the 6,3 mm headphones jack.
The slightly odd arrangement of the MSR-2's controls are explained by that the fact that the construction of this receiver is based on the chassis of the Drake R-4 and SPR-4 receiver series. The signal strenght meter, digital frequency display, the main preselector and the lower row of controls including AF / RF gain and modes control have identical locations as found in the DSR-2, which was an improved version of the SPR-4 with a frequency synthesizer and digital display added. The monitor speaker and the VLF preselector part has been added later.
As this set has been used in maritime communications, it is worthing consulting
the operator's manual before switching it on:
© Martin Bösch 15.12.2008