Looks good John.... Our readdings are within .03Hz on 160, .1Hz on 80, and .06Hz on 40 of each other.
Connie -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Ackermann N8UR Sent: Wednesday, January 03, 2007 9:33 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] FMT 2006 results I've put my FMT results at http://www.febo.com/time-freq/fmt/fmt2006/ based on the preliminary numbers from ARRL that Connie posted here. As I noted earlier, I screwed up the math and ended up being off on all three bands by 75 to 110 Hz -- double the delta between W1AW and my marker, because I did USB math when the receivers were set to LSB. After correcting that error, I was -0.295 Hz on 160, -0.343 Hz on 40, and -1.066 Hz on 40. That's a bit more like it, though the error on 40 is interesting, and I see that a few other folks saw that problem, too. We'll have to wait for the final results from W1AW to see if their 40M frequency had a typo. I think a couple of other folks noted, as did I, that on 40M there appeared to be two signals close to each other (I measured about 0.5 Hz). An FFT with enough resolution to separate them lost any ability to look for CW in the waterfall, so I had to guess which was the correct signal. I chose the sharper one, which was the higher frequency of the two; had I picked the one that was more smeared out, I would have been more like -0.5 Hz off. I've learned my lesson -- from now on, all measurements will be taken in USB mode! John _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
