[TowerTalk] Adjacent BC AM sigs DE K0FF

[Tom Rauch]

> George wrote:
> 
> <<...snip...I can give you info on building a passive preselector. All you
> need is one or two 365 variable caps and a coil form ( I even use toilet
> paper tubes). My preselector (passive, in the antenna line) allows me to
> null out a 5KW station virtually in my back yard... We're assuming an
> outdoor antenna, or the willingness to use one? more info upon request,
> K0FF >>
> 
> Hey George,
> Sure, I'll bite. Sounds very useful. Why don't you go ahead and post all
> the details of how to build, install and use? I'm sure it would benefit
> many, and would be a valuable addition to the archives.
> 
> --...MARK_N1LO...--

I'd like to know how to get enough selectivity in a preselector to 
reduce adjacent channel interference on the AM BC band! That 
would require some very high Q components.


 
73, Tom W8JI
w8ji@contesting.com

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