On Wed, 14 May 2008 10:22:05 -0700 (PDT), you wrote: > > > >Tom Childers, N5GE wrote: >> >> On Wed, 14 May 2008 08:21:59 -0700, you wrote: >> Tuning for zero beat is the same method orchestras use to match the >> Concert >> Masters note at the beginning of a concert, so it is very accurate. It is >> also >> the way piano tuners tune pianos with a tuning fork. >> > >True...very easy for anyone to do. You can also watch the S-meter (an >analog one is better) for minimum swings as the beat frequency is approached >(same way pilots synchronize multiple engines BTW). > >If you have good hearing, you can also match two tones separated in time. >Below is a website where you can test your ability to do that. I think I >got something like 0.4 Hz on the test which was in the upper 90s percentile. >If you have musical ability, you do this all the time as you adjust your >instrument on-the-fly (e.g. positioning your fingers on a violin). [snip]
Another way to make zero beating on CW even more accurate is to turn the AGC off, but if you do this don't forget to turn the AF gain down before you do! 73, 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
