On Fri, 11 Jul 2008 06:08:03 -0700 (PDT), Bill W4ZV wrote: >My point is to realize that the cascaded BWs may be 20-25% less than what >you think the maximum BWs are from their specs.
Right on! BUT -- one good way to deal with this when you already own the narrower filter is to tell the K3 that its bandwidth is wider than it is. For example, I have tell the K3 my 400 Hz 8 pole filter is 500 Hz, and the 1.8 kHz filter is 2.2 kHz. I find that I also want to shift the 1.8 kHz filter down about 150 Hz. Another point -- some have noted that at least some of the roofing filters are actually wider than their nominal value. 73, Jim Brown K9YC _______________________________________________ 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
