I see that Lyle (Mr. DSP) stepped in with the answer I couldn't have given you anyway <G>. That's the beauty of this reflector: lots of expertise and resources. I seldom "answer" a question without learning something myself!
Someone else dropped me a note reminding me that Wayne discusses roofing filters on the Elecraft web site and, in particular how he addressed the design issues of employing them in the K3. That FB write up is here: http://elecraft.com/K3/Roofing_Filters.htm Ron AC7AC -----Original Message----- From: Dave Van Wallaghen [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 20, 2008 2:21 PM To: 'Ron D'Eau Claire'; [email protected] Subject: RE: [Elecraft] Roofing Filters First, thank you Ron for putting that in a very comprehensive manner that even I could understand ;-) As usual, you've turned on the "light bulb". Now, when I purchased my K3 and debated on my purchase of the roofing filters, I spoke with a few hams who said that the roofing filters were primarily for blocking out close in and powerful signals and that if I didn't have that problem where I live, that the standard DSP filter with the standard 2.7khz filter would probably suffice. And that is what I did. But I wonder (always dangerous), if operating on some of the noisier bands, would there be a benefit to using a narrower filter to cut down on the amount of energy hitting the DSP in order to help with digging out weak signals? Or is that not a consideration with this particular implementation of DSP in the K3? As is, it has been fun playing around with digging out weak signals and enhancing them. I need to get a better antenna to rig switching setup so I can make a/b comparisons with my K2. Thanks in advance, Dave W8FGU > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
