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[RFI] W3NQN AC Line Filters

To: <RFI@contesting.com>
Subject: [RFI] W3NQN AC Line Filters
From: "Tim Heger" <n3xx@charter.net>
Date: Tue, 20 Nov 2007 17:18:53 -0500
List-post: <mailto:rfi@contesting.com>
Recently, someone made a post here suggesting the use of a W3NQN AC Line 
Filter.  Unfortunately, I didn't save that message, but wanted to say thanks to 
whoever made that suggestion.
About a year ago, I installed Beverages here for the first time.  Due to my 
limited space, the only way to have a NE/SW Beverage was to have it running 
very near the outside wall of my house.  This made the Beverage only about 15 
feet from my computer and house wiring.  The close placement caused S9 noise 
from the computer when using the Beverage in the NE direction, and somewhat 
less in the SW direction.  I tried disconnecting every cable except the power 
cable from the computer, and there was no noticeable difference in the noise 
level.  The only way to stop the noise was to power down the computer, pretty 
inconvenient every time I wanted to work someone on 160.  I ordered the W3NQN 
filter, and now have the computer power cord connected through this filter.  
The noise is completely gone, down from S9 to S0.  It will sure be a pleasure 
to be on 160 this winter without having to power down the computer.  The filter 
was a little pricey, but I think it will be well worth it.

73, Tim - N3XX
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