[BC] Closest-frequency AM diplexes

WFIFeng@aol.com WFIFeng
Tue Jan 3 10:54:17 CST 2006


In a message dated 01/03/2006 10:42:34 AM Eastern Standard Time, 
tosenkowsky at prodigy.net writes:

> I would look for loose connections, poor bonding, etc. Track it down
>  with an FIM. I had a Kahn AM Stereo install. A lot of noise in
>  stereo, not in mono. Not showing up on scope, mod monitor etc. but
>  was very audible in stereo within 1/4 mile of the station. I cured it
>  by placing a wire over the vibration dampener on the A/C duct system.
>  Vibrating ductwork caused L-R phase noise!

Wow! "Scotty, you just earned your pay for the week!" <g>

That's quite the "war story". How long did it take to track that puppy down? 
I presume the air handler was at the TX site?

Willie...


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