Excellent advise! Scanners are notorious for making sounds like this also but more on a single frequency.
Computers are also extremely noisy! When operating HF I never use a computer, every one I have ever had or used, adds at least 10 DB to the noise floor. horrible machines,
Nate Duehr wrote:
One initial thought.
First... make sure it's not in your own "backyard". Run the receiver affected off of battery power and kill the main to your house. (Don't forget to turn off anything on a UPS.)
If it disappears, you know where to start hunting, at least, and it's an easy test.
Consumer electronic gear is getting consistently noisier (is this stuff passing any RF testing at all?) and often-times your own "toys" are making the RF racket.
-- Nate Duehr, WY0X nate@natetech.com
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