[Elecraft] K3: Voice pitch adjustment on SSB

[Tom W8JI]

>I didn't think is was LEGAL to transmit music, "tones" or 
>even whistle for
> that matter.

Tones are legal for specific purposes like adjustments.

It's easy to adjust normal SSB to proper tuning by listening 
to the voice. Voices contain harmonically related 
frequencies that sound odd (out of tune for harmonics) when 
improperly tuned. There isn't any need for anything except 
careful listening while tuning and almost anyone who isn't 
totally tone deaf can adjust for perfect frequency.

I'm wondering if the artificially exaggerated bass and 
treble used by some ops doesn't mask the beats normally 
heard with flat speech response and make it difficult to 
tune the signal.

I don't think it is a bandwidth issue per se because the 
normal SSB tuning procedure is to listen for the beats in 
normal real-world harmonics of the human voice (or in 
music). It is just as easy for me to tune a 25 kHz BW audio 
signal as a 2 kHz BW when the response is flat across either 
passband. Perhaps the exaggerated unnecessary lows and highs 
(I can copy some ESSB stations on AM without even using a 
BFO, so the exaggerated lows act like a carrier) mask the 
normal frequency relationships in voices and make the 
signals more difficult to tune. It may be a self-created 
problem by the introduction of severe frequency response 
distortion.

73 tom