As another poster mentioned, pressing and holding in the CW button will
provide the sidetone to the speaker... just zero-beat the received signal to
it.
Another (more precise) method is to run your favorite HF digital program
(DigiPan, MixW, etc.). Use the waterfall to zero-beat. When you press the
CW button, you will see the tone reflected at the sidetone offset, i.e., 700
hz. Place a marker there, and then you can easily tune to zero beat by
moving the trace from the desired signal to your marker by tuning the radio.
I like having these programs running because it's interesting to watch all
of the CW signals in the passband. Kind of like a poor man's 2.5 kHz
bandscope (actually, exactly like it).
Re preferred freq for the sidetone, I like using 700 hz. The ear has an
easier time differentiating tones as you go lower, but too much lower with
the sidetone/offset and you start running into the filter skirts.
- jgc
John Clifford KD7KGX
Heathkit HW-9 WARC/HFT-9/HM-9
Elecraft K2 #1678 /KSB2/KIO2/KBT2/KAT2/KNB2/KAF2/KPA100
Ten-Tec Omni VI/Opt1
email: kd7kgx@arrl.net
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