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
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
