Years ago, I was faculty advisor of a thesis containing a viable technique
for measuring the carrier of a SSB signal modulated by a human voice when
the carrier was nulled. The student's name, as well as I can remember, was
Day and his first name was something like Louis.

Should be a link to it somewhere.

The scheme took advantage of the nature of the human voice. It required one
to have the means to inject a carrier (which was measured by conventional
means) and to look at the recovered audio on a scope.

The old FMT had one measure CW signals. They were great fun.

73 Mac N8TT

--
J. Mc Laughlin; Michigan U.S.A.
Home:
"Richard Clark" wrote in message
...
On Thu, 10 Nov 2005 10:06:56 GMT, ml wrote:
I'd love to learn and try it, but didn't see any posted
''instructions''...

Participants may utilize either direct or indirect techniques to
determine the tone frequency. ''Direct measurements assume a carrier
frequency and measure the audio tone frequency directly,'' Silver
explains. ''Indirect measurements obtain the transmitted frequency of
the tone component at RF, then compute the difference between the
published carrier frequency and measured frequency.''

Hi Myles,

You don't see instructions because you are supposed to work this out
for yourself and then report both your results and HOW YOU DID IT.

It should be a slam dunk with a PC sound card being run under an FFT.
However, the skill part is tuning the sideband (and then it remains
only the skill of reading the frequency setting of your rig - any
error is probably going to be there).

73's
Richard Clark, KB7QHC