[TowerTalk] Are All Low-Pass Filters Alike?

[Michael Tope]

I think the ARRL RFI handbook has test data on a
bunch of different LPFs and HPFs in the Appendix.
It is interesting to note the wide variation in performance.

Mike W4EF.........................

----- Original Message ----- 
From: "Peter Chadwick" <g3rzp at g3rzp.wanadoo.co.uk>
To: "Jim Brown" <jim at audiosystemsgroup.com>; "Tower Talk List" 
<towertalk at contesting.com>
Sent: Tuesday, August 16, 2005 12:11 AM
Subject: Re: [TowerTalk] Are All Low-Pass Filters Alike?


>I agree with Jim, K9YC. It's impossible to determine the real differences
> between them. A Cauer Chebycheff can be usefully arranged to have notches 
> at
> harmonics of the various bands, but it doesn't say so.
>
> What it does say is pretty well pure BS.
>
> 73
>
> Peter G3RZP
>
>
>
>
>
>
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