![]() In receiveMake sure you keep your transmitter out of ALC for optimum PSK31 operation. Modest use of ALC compression circuitry on SSB voice is a known technique and is quite viable. Use such ALC limiting with precise digital modulation schemes. again not so much.Ĭlick to expand.Reply agreegin with NL7W who stated no ALC and no comp should be present whatsoever:īY GOLLY MOLLY THAT IS NEVER BEEN SAID BETTER !!!!ĭigital should be just that, non compressed or massaged in any form but raw square wave on the oscilloscope with sharp as razor edges where the waveform snaps high or low in a clean vertical line at each snap from zero to 1 or from 1 to zero. ![]() I tell you the other problem with fokes is they believe that technique is more important than knowledge. I am a software developer with a Icom 7300 and I know for a fact you do not want the signal pumped with compression or ALC redlining or its gonna twist the signal.īut I am rather biased as I possess a DSO and have viewed all the wave forms we are describing on scopes and know what the hell is going on here, although I not a EE, I damn near understand almost as well as one which way is up here.
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