In article ,
(K0NR via
rec.radio.amateur.moderated Admin) wrote:

Post : Troubleshooting a Radio Interference Problem
URL :
https://www.k0nr.com/wordpress/2020/...nterference-pr
oblem/
Posted : 14 April 2020 at 11:44 am
Author : Bob K0NR
Categories : Equipment

I recently encountered a problem when using my Yaesu FT-950. Sometime during
the CQ WW WPX Contest, I noticed an annoying tone ("a birdie") in my
receiver. I've had this radio for many years, used it quite a bit and this
was the first time I encountered this problem. It struck me as very odd
because it did not go away when I disconnected the antenna and it did not
change frequency when I tuned around.

Bob-

I don't remember which radio, but once had such a birdie. It turned out
to be something laying on my key. I was on SSB at the time, but closing
the key made the sidetone.

Fred