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[TowerTalk] antennas and line filtering

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Subject: [TowerTalk] antennas and line filtering
From: (
Date: Wed Feb 5 20:25:19 2003
I have a 756Pro that shows a nice steady pattern of noise moving accross my 
scope that my rig is picking up putting S9 noise out on 80M, S7 noise on 40M, 
S6 noise on 20M, and less noise but the same pattern on higher bands.  This 
is from a 5BTV antenna mounted in a suburban Denver neighborhood.  My 
question to those with similar noise is it simplier to troubleshoot 
the noise with an AC line filter or should one begin at the antenna trying to 
null things out with a 1026 or like device?  I'm using 25 amp radio shack 
switching supplies that put out a nasty RF rash about every 100KHz..they 
never had this problem at another QTH....makes me suspect my AC in the house 
has a contributing factor here----------------------any suggestions on a 
decent AC filter to try and/or other theory to attempt?  MY noise blanker 
takes out about 2S units of noise- If anyone can refer me to a webpage that 
might have a proven method for troubleshooting noise like this,  pse let me 

73  Paul  N0AH
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