On Sat, 29 Sep 2007 12:20:21 -0700, Jim Brown K9YC wrote: >On Sat, 29 Sep 2007 18:56:26 -0000, Roelof Bakker wrote: > >>Two signals 40 Hz apart are much easier seperated at a pitch of 400 Hz than >>at a pitch of 800 Hz. At 800 Hz the difference is 5%. At 400Hz it is 10 %. >>This is the way our BSP (biological signal processor) handles it. > >Yes, this is very good advice. > >Jim Brown K9YC >
Ok, that makes sense. Now what about weak signals in noise (no QRM): any idea which pitch is better there? And I wonder about keying speed (element length): a shorter element must carry better at a higher pitch I would think. Of course, it doesn't matter much if your own ears have a problem with the theoretical best pitch, i suppose. 73, Drew AF2Z _______________________________________________ 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
