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Re: [TenTec] Noise reduction of roofing filter?

To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Subject: Re: [TenTec] Noise reduction of roofing filter?
From: "Grant Youngman" <nq5t@tx.rr.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 7 Mar 2007 11:41:36 -0600
List-post: <mailto:tentec@contesting.com>
> the sharper cornered the filter frequency response, the worse this is.
> Tentec filters are good at not stretching static compared to vintage
> Collins filters that turn a click to a crash or line noise spikes to a
> continuous noise. The narrow roofing filter will probably reduce the
> noise power but by stretching the pulse it will sound like its been
> increased.

Another undesirable side effect is that the pulse stretching can have
significant negative impact on the effectiveness of the NB.

Grant/NQ5T

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