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Re: Topband: BCB Filter Recommendation?

To: topband@contesting.com
Subject: Re: Topband: BCB Filter Recommendation?
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Thu, 16 Apr 2020 21:51:02 -0700
List-post: <mailto:topband@contesting.com>
On 4/16/2020 9:24 PM, Richard (Rick) Karlquist wrote:
10 dB down at 1579 kHz is not good enough for many QTH's.
I have a very strong local station at 1700 kHz,
for example, and another at 1530 kHz.

As Rick and Frank have observed, the operating frequency(ies) of the BC stations you need to suppress matters a lot. The better 160M bandpass filters are probably all you need for a BC station low in the band, but you'll need to go in loaded for bear to kill a strong station high in the band.

73, Jim K9YC


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