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[AMPS] Low Pass Filter

To: <amps@contesting.com>
Subject: [AMPS] Low Pass Filter
From: ccc@space.mit.edu (Chuck Counselman)
Date: Fri, 1 Dec 2000 16:36:02 -0500
>On Thu, 30 Nov 2000 09:47:43 -0000 Peter Chadwick
><Peter_Chadwick@Mitel.COM> writes:
>>
>>How did we manage 40 years ago when ferrite chokes weren't so readily
>>available?
>>
>>73
>>
>>Peter G3RZP
>>
>
>  By running the coax through a wad of steel wool inside a mailing tube!
>
>73,
>  Marv WC6W



Can anyone post quantitative info on this method, e.g., for a given
diameter and length tube, packed with how much of what grade steel wool,
how many dB of attenuation as a function of frequency?

Tnx  -Chuck W1HIS



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