I don't normally operate phone, but wanted to contribute a few QSOs to
my club in SS SSB. So I recorded messages on my external USB sound
card, using Audacity. They sounded fine, both on a speaker and on my
K3's monitor. So then I plugged my Yamaha CM-500 condenser mike headset
into the rear microphone jack, with MIC SEL = rP.L bIAS. That worked
OK, but there was a very high level of white noise, audible both with
live voice and while playing recorded contest messages. I was reading
700 watts out without talking.
Experimenting, I discovered that the source of the noise was definitely
the mike on the rear microphone jack. I also didn't like the fact that
in this setup the mike was live while recorded messages were playing.
How can I rig things so that the mike doesn't contribute this high level
of background noise, and how can I manage things so that the microphone
is muted when the recorded messages are playing through the line in jack.
--
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite
"retail" DX cluster.
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