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RE: Roofing Filters

Posted by Brett Howard on Feb 21, 2008; 8:38pm
URL: http://elecraft.85.s1.nabble.com/Roofing-Filters-tp461501p461503.html

So in reading the inrad description of roofing filters at:

http://www.qth.com/inrad/roofing-filters.pdf

It seems that they all but tell you to buy the elecraft 5-pole filters when
talking about 500Hz and narrower bandwidths.  Does this hold true in the
case of the K3 in that the higer pole count results in a lower "roof" I
guess you could call it and then end up needing more gain in the next stage
therefore ending up with less dynamic range?  

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Bill W4ZV
Sent: Wednesday, February 20, 2008 12:30 PM
To: [hidden email]
Subject: Re: [Elecraft] Roofing Filters




AnnLatz wrote:
>
> Can someone explain the meaning of "roofing filters". I have searched
> everywhere and can't find a good explanation. Lisa recommended the FAQ
> section of Elecraft and there they just mention them. Maybe I should order
> an updated Ham bible from ARRL.
>
> Thanks, Alan KA9UCP
>
>

See below, written by W2VJN of Inrad:

http://www.qth.com/inrad/roofing-filters.pdf

73,  Bill  W4ZV



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