snip
Geesh, it sounds like we are tying to get -80dB IM3 performance. That
simply isn't the case!
A zero-bias class-C amplifier can do almost as well as some modern
radios for IM3 performance. Is it really too much to ask that radios
be 10 or 20 dB better than class C performance?
snip
Is zero-bias synonymous with Class C ???? I was under impression that
operation of Class C required the amplifying device to be biased beyond
cutoff allowing conduction for a portion less than 180 degrees (typically at
the peaks of the input signal -- 90 degrees). Does zero bias do
this.....maybe for some devices????. Zero bias would seem to be more of a
Class B operation.....Please elucidate.
73, Jim, wd4air
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