The Jones filter seems to work fine for general ops but in any cw sprints I 
have had to lug out the Autek QF-1 or QF-1A. They really do a super job with 
weak and crowded signals. I was reading about the Logikit SCAF-1 and am curious 
if anyone has used both the SCAF and the QF-1 or (A) to be able to share their 
observation. The eHam reviews are kind of inconclusive.
http://www.idiompress.com/scaf-1.html
(The QF-1 has a nice feature of actually providing some gain to the weak 
signals)
Thanks---
Alan KB7MBI in Woodinville, WA
FISTS 5702 / ARS / Proud member of ARRL
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