On Wed, 14 May 2008 08:37:10 -0700 (PDT), you wrote: > > >Tom Childers, N5GE wrote: >> >> When working weak signals in QRN or QRM, getting an exact zero beat is >> crucial if you want to have the best copy. >> > >Why? (seriously) > >73, >Barry N1EU
You won't notice much difference in a wide filter greater than 1000hz, but with narrower filters tuning to the exact zero beat will give the strongest signal to the RX, especially if you reduce the filter's band width with DSP to 100hz or less. When you get down that narrow you may lose the signal if you're not right on it. I'm speaking from experience. I have no scientific proof of this. I could be wrong in a scientific regard, but that's what works best for me. How do you like your Alpha 99? Tom, N5GE - SWOT 3537 - Grid EM12jq "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety" An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE _______________________________________________ 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
