I'm afraid I must disagree in some cases. I know nothing about the Icom ALC design but I'll be willing to bet it is typical of modern ham SSB transceiver design attempts at a cheap way of preventing
Audio reduction doesn't work either but for a different reason. The audio waveform only has a slight resemblance of the RF waveform in an SSB transmitter. Audio limiting works well on AM with both si
I have performed tight peak limiting on audio operating SSB and find it works well and the ALC is not needed. There is a relationship between input audio amplitude and SSB RF power IF your SSB transm
All you need to do is feed a square wave audio into an SSB transmitter and look at the RF output waveform. You will not see a square wave but will see sharp spikes that represent the rise and fall of
Gary, You are correct but your knowledge is out of date. What you say does indeed apply to old methods of analog audio limiting such as diode clipping (eg CBS Labs Volumax) which should not be used i
ORIGINAL MESSAGE: REPLY: Your statement is correct only for low frequency square waves, ones below the bandpass of the transmitter's audio circuit. With a suitable high frequency square wave, you wil
I take it that you have never tried it! A square wave will not pass thru an SSB transmitter as a square wave. It is not the audio band pass that causes the problem. It is the phase shift involved in