Hi group, good copy of the 1200 UTC SAQ transmission here in Eastern Bavaria (JN59WK) as usual. QRG was about 17.185 kHz. At home with SPM 30 with filter 24 Hz and active whip HE 011: -71 dBm resp. 0
Hello all, SAQ was 30 dB above the noise floor here and the residual key-up carrier was about 17 dB weaker. If you can hear the latter, reception is good! The receiver here is a PERSEUS SDR and the a
Hello Roelof, your 17dB agrees very well with my measurement made many years ago, I also found the "backwave" to be 17 dB below key-down power. Assuming the key-down output is 200kW, "only" 4000 watt