On Tue, 2004-07-12 at 13:40 -0500, W3FPR - Don Wilhelm wrote: > go to passband tuning with FL2, 3 and 4 with a 400 Hz filter width; > center FL2 at 650 Hz, FL3 at 750 Hz, and FL4 at 550 Hz (assuming a 600 > Hz sidetone). That should allow a normal 400 Hz filter for crowded > band use (FL2) plus the ability to drop a lower pitched interfering > signal out with FL3 and a higher frequency interfering signal out with > FL4. Turn the centering for FL3 and 4 around if you want to drop off > the high end first and the low end with FL4.
Neat idea. Couldn't you do the same thing with a single filter by using the RIT? The pitch of the desired signal would, of course, change, but that's not a big deal. Then you can still have 4 different filter widths. -- 73, Brian VE7NGR _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
