Tom Sevart wrote:

"S R" wrote in message
...
Hi Tony: The bubbling sound I hear, only happens on the 10 & 11 meter
band.
(Analog). It is at random.

Someone once refer to this bubbling as a whale fart.

I think you're hearing Over-The-Horizon Radar (OTHR). It is a very
flatulent signal that I once heard a guy on a fishing boat refer to as
"gorilla farts."

http://www.wunclub.com/sounds/index.html

Click on the OTHR link and see if it's the same one.

I'm familiar with two kinds of 'bubble' signals. One is a utility mode
for sending data and the other kind is used for jamming a shortwave
signal. Both have a bubbling quality to their sound. If you hear a
bubble signal on one of the international shortwave bands, it's likely a
jammmer.


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