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Re: Topband: The AM Brick Wall

To: <topband@contesting.com>
Subject: Re: Topband: The AM Brick Wall
From: "Jim McDonald" <jim@n7us.net>
Date: Fri, 26 Nov 2010 20:09:46 -0600
List-post: <topband@contesting.com">mailto:topband@contesting.com>
I've used the BCB filters from ICE and was satisfied with their performance
in my situation.
http://www.iceradioproducts.com/filtersrf.html#bcb 

Jim N7US



-----Original Message-----


>> Joe, W4TV wrote:
>>For those looking for solutions to eliminate/reduce 
>>overload from
>> nearby AM broadcast transmitters, 

I have a 50 kW BC station on 1530 kHz about 1.6 miles from 
my QTH, with mostly salt water between us. The signal 
level on my 90 foot Vertical is over 20 dBm. When you 
touch a wire to the feedpoint you can see a small spark!

I find that most receivers' front-ends overload on this 
antenna but when I turn on the internal antenna tuner, the 
high-pass function of the tuner gets rid of the overload.

This may not work all the time, but is certainly a simple 
and low cost solution, if it works for you.


_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK

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