John, The 75 Hz RTTY centered on 73.6 kHz is not a continuous transmission. I have heard it every day this week around 2200 UT. It produces a reading of -30 dbm on my selective level meter (tuned loo
Stewart, Also, is the following about the FSK signals correct? On about 73.6 kHz is CFH (75 Hz shift and 75 BPS) and on about 73.3 kHz is Rugby (100 Hz shift and 100 BPS). I have only seen listings i