Topband
[Top] [All Lists]

Re: Topband: Topband Digest, Vol 145, Issue 5

To: "topband@contesting.com" <topband@contesting.com>
Subject: Re: Topband: Topband Digest, Vol 145, Issue 5
From: Greg Chartrand via Topband <topband@contesting.com>
Reply-to: Greg Chartrand <w7my@yahoo.com>
Date: Tue, 6 Jan 2015 16:55:36 +0000 (UTC)
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Looking for 160m narrow beam RX advice (Lloyd Berg - N9LB)
 I had a similar situation about 15 years ago with my next door neighbor who 
had something in his house that was giving me S9 raspy noise 24x7. I could not 
find the source in his house but I suspected  his doorbell transformer that was 
buried inside a wall of his house. The noise precluded all DX on 160 not to 
mention everything else. 
I purchased an MFJ-1026 and had a sense antenna directly between my vertical 
(receiving antenna) and his house. I was able to completely null out the noise 
from his house right down to atmospherics. I worked a lot of DX using the 1026 
and about 4 years later the noise went away without explanation. 
You can put up flags, loops, pennants... whatever but none of them will have a 
null anywhere near what you can do with a 1026 and sense antenna .... assuming 
that the noise source appears as a single point. You can verify this using a 
portable AM radio and using the loop-stick antenna in it to null the noise. If 
it nulls well, the 1026 would be a good investment.  

Good luck!Greg
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
<Prev in Thread] Current Thread [Next in Thread>
  • Re: Topband: Topband Digest, Vol 145, Issue 5, Greg Chartrand via Topband <=