[Premium-Rx] Roofing Filters

[Carcia, Francis A HS]

    Hank,
Roofing filter came from the idea of up conversion with the roofing filter
eliminating the f1 plus f2 component. Then smart guys learned to make VHF
crystal filters. The name stuck. fc

-----Original Message-----
From: Henry Kolesnik [mailto:kolesnik at sbcglobal.net]
Sent: Tuesday, February 08, 2005 2:47 PM
To: premium-rx at ml.skirrow.org
Subject: [Premium-Rx] Roofing Filters


This site has a good explanation:
http://www.radio-electronics.com/info/receivers/filters/filter_options.php
<http://www.radio-electronics.com/info/receivers/filters/filter_options.php>

 
But term roofing still bothers me as roof has in the past implied something
above.  Oh, well I'll get used to it>

73
Hank WD5JFR

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