I tried setting up FSK rtty today for first time in a long while, and
found I had a problem.
I have a pair of K3 rigs on the desk. No trouble with one. On the
other, Mark tone is sent higher than 2125. (It's high enough up that my
2d rig can't decode the TX signal. Maybe around 2600 Hz)
The Space tone may be high too - my ear can't discriminate. (But in the
X-Y scope pattern of the TX signal, as received on the 2d rig, the tones
are at right angles - if that means anything...)
Thinking it might be a TX AFC problem, I disconnected the computer.
Same result.
When I long-push PITCH, the rig speaker gives the 2125 HZ tone. But
when I touch XMIT, the rig gives a different - higher - tone. (In
contrast, with the other K3, both buttons yield the same tone - a tone
which matches the 2125 Hz output by the problem rig when I press its
PITCH button).
I tried updating all firmware (e.g., from 5.10 to 5.35). But issue
persists.
Ideas?
Thanks,
/Bill, K2PO
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