[Elecraft] K3s not transmitting AFSK

[Jim Rhodes]

Yes, Windows 10 is wonderful at keeping our blood pressure up.

On Sun, Nov 14, 2021 at 12:14 PM Mike Dodd <mike at mdodd.com> wrote:

> It's all working now, and I can't explain why.
>
> Rich VE3KI sent me a suggestion off-list to try the Windows 10 Sound
> Control Panel.
>
> The ONLY thing I did there was select the USB CODEC, check that the
> playback level was not 0, and click the Test Device button. That
> produced a few tones, and the K3 produced 100W into a dummy load in the
> DATA mode, just as it should.
>
> I launched N1MM with the Digital window open, and pressing F4 sent my
> call, and the K3 again produced RF.
>
> So I switched back to the Carolina Windom antenna and worked LA1TV on
> 15M with the KPA500 pumping out 300W.
>
> Bottom line: The K3 was not producing RF in DATA mode when I started
> this morning, then produced RF after I tested the USB CODEC in Sound
> Control Panel. I have no clue why.
>
> Thanks again to everyone who offered advice.
>
> ---
> 73, Mike N4CF
> Louisa County, VA USA
> Elecraft K3s / P3 / KPA500 / KAT500
> Carolina Windom up 45'
> http://n4cf.mdodd.com
>
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-- 
Jim K0XU
jim at rhodesend.net