Good Afternoon, All.
A little help understanding here would be appreciated.
A given TX on AM or SSB would have an amplitude envelope proportional to the modulated audio signal, right?
What is the amplitude of that signal if there is no audio excitation?? I wouldn't expect zero.? I would key a shorted mic and there would be some carrier with no amplitude modulation.
If we were looking at the math, the output of the TX would be something like, A*sin f + C, where C would be the signal with no one talking into the mic, right?
Arvo W0VRA