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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+BC\s+filter\s+follow\-up\s*$/: 3 ]

Total 3 documents matching your query.

1. Topband: BC filter follow-up (score: 1)
Author: N1BUG <paul@n1bug.com>
Date: Fri, 06 Jan 2012 09:05:53 -0500
Thanks to everyone who sent suggestions on my problem. Those who did not receive a personal thank-you note is because mail to you bounced. I thought it might be helpful to post a follow-up with links
/archives//html/Topband/2012-01/msg00092.html (8,905 bytes)

2. Re: Topband: BC filter follow-up (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Fri, 06 Jan 2012 09:42:49 -0800
Attenuation at the top of the band (near cutoff) is the toughest to achieve, the Clifton filter looks awfully good, and the cost is quite reasonable. If I had your problem, that would be my choice. 7
/archives//html/Topband/2012-01/msg00098.html (7,460 bytes)

3. Re: Topband: BC filter follow-up (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Fri, 6 Jan 2012 11:04:25 -0800
The Clifton filter is a Chebyshev, with only 14 dB attenuation at 1.7 MHz. What you really want is an elliptic function filter, of which there are several available. These can provide much more atten
/archives//html/Topband/2012-01/msg00101.html (7,447 bytes)


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