[TowerTalk] Follow up on AM interference

Jim Brown jim at audiosystemsgroup.com
Tue Dec 12 20:52:20 EST 2006


On Tue, 12 Dec 2006 13:47:50 -0800, Tom Osborne wrote:

>The first post said that I am having problems with AM broadcast 
>interference with my 80 meter dipole that was never there before.  

Hi Tom,

Can you identify the AM broadcast station(s) involved? These products are 
usually a mix, and can occur outside your own site. At my first QTH in WV, 
I had an intermod product from 930 kHz (5 kW) and 1470 kHz (also 5 kW) on 
3870 kHz. The two transmitters involved were within about a mile of each 
other, and within about 1.5 miles of me. I knew the chief engineers of both 
stations, and worked for one of them briefly as coop engineering student. 
We never did track down the cause. 

Jim Brown





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