[RFI] 160 Meter Interference

[EDWARDS, EDDIE J]

Remember that turning off the power to a house does NOT eliminate UPS
noise problems.  They keep on going without AC power causing the same
noise in most cases.  So if you or your neighbor has a UPS you have not
eliminated that yet.  

73, de ed -K0iL

-----Original Message-----
From: rfi-bounces at contesting.com [mailto:rfi-bounces at contesting.com] On
Behalf Of Ford Peterson

Bill wrote:
> I have eliminated my house as the culprit by shutting down the main
breaker
> and operating the radio off battery power. I have also asked my
neighbor to do the 
> same thing which provided no clue either. 

I had a switching supply on my LAN router that was giving me fits.  So
I'd smack it on the desk top (pretty hard I might add) a few times and
the noise would go away (or at least detune it for a while ; ).  Sure as
heck it would return at the most inopportune moment, so I'd smack it up
side the head a few more times.  Replacing it with a linear supply seems
to have solved the problem forever.  But it occurs to me, do you have
some device hooked to a UPS?  Or the UPS itself may be a problem.  With
the interference so loud, it has to be close by.

Ford-N0FP


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