[Elecraft] K2 RF Speech Processor?

[Geoffrey Mackenzie-Kennedy]

Bill NY9H <ny9h at arrl.net> wrote:

> I too would be interested to see how much additional ""distortionless""
> average amplitude could be generated beyond the AD chip.
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FWIW my guess is that if audio compression and true clipping is to be 
employed before the balanced modulator, it's an 'either - or' situation. If 
some of both is used, the clipper should I think be ahead of the compressor 
mainly to take advantage of the existing noise gate in the K2's compressor, 
but not a tidy arrangement. I still have the hunch that if a clipper is used 
as the 'main' audio processor, the compressor's compression ratio should be 
reduced.

To limit additional distortion could require a symmetrical clipper in the Tx 
IF together with the audio compression, but that is a very different story, 
and quite impractical as a mod to the K2.

73,
Geoff
GM4ESD