Are you using an external RTTY program, e.g. MMTTY? If not and you're using the
internal CW to RTTY feature, I can't help you. Otherwise I'm assuming audio
input via Line In. Baud rate is set in the program.
Make sure the audio drive, set by 1) soundcard level and 2) "Mic" gain, drive
the ALC indicator to four bars. Less and the power control loop will try to
adjust, but it does this slowly. Otherwise it could be a blown final, in either
of the PAs (regrettably too common) or a mistuned BPF. I don't know how common
this is but it happened to mine.
Wes N7WS
On 4/29/2021 8:18 PM, John Reilly wrote:
I have two K3 questions:
1. In Data MD, AFSk A, you can set the baud rate to either 45 or 75. Is the
baud rate just for the RTTY reader? Does it affect anything else?
2. With my K3s power set to 100w, RTTY starts at a little below 50w and and
then fairly slowly builds to 100w (measured on an external wattmeter). I've
done a TX calibration -- no change. What is going on?
Thanks,
- 73, John, N0TA
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