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en:betriebsarten [2021/05/01 11:17] – mben:betriebsarten [2024/08/02 11:31] (aktuell) – [A2] mb
Zeile 18: Zeile 18:
  
 In contrast to the unmodulated carrier of a CW transmitter, the signal in A2 can be heard in a normal AM receiver. Even with a simple detector the signal can be demodulated, that's why this operation mode allowed the construction of very simple receivers in the early days of radiotelegraphy. In contrast to the unmodulated carrier of a CW transmitter, the signal in A2 can be heard in a normal AM receiver. Even with a simple detector the signal can be demodulated, that's why this operation mode allowed the construction of very simple receivers in the early days of radiotelegraphy.
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 +In Switzerland, this mode was used by the Air Force for morse code communications with airplanes, as the receivers were easier to operate without the need of using / operating of a [[BFO]].
  
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en/betriebsarten.1619860667.txt.gz · Zuletzt geändert: von mb