[BC] am receiver for monitoring at a 20 KW site.

[William Eaton]

I use this method often, for co-channel spacing studies. Yet these are UHF and much lower power and my filter block is very tiny (800 mhz.) But it does very well pulling the target channels up out of the grass.
On Jun 5, 2012 6:09 PM, "Dave Dybas" <dd92251 at aol.com> wrote:

>It's not that big a deal if you have a pretty well shielded receiver with a
>coax input.  You design a series pass filter for the freq you want to
>receive, and then put a parallel cap or inductor across the series network.
>Adjust the series LC for best signal at the wanted freq...then adjust the
>parallel cap (or inductor) to reject the undesired (20KW) signal.
>Essentially it's a diplexer type network.

>Of course a little experimentation may be necessary to get the whole thing
>properly tweaked.

>Dave Dybas