Here are the retest results. The cable length is now doubled, was 4 feet, now it's 8 feet.
min 9999999.99571 max 9999999.99924 avg 9999999.99759 median 9999999.99767 Quite similar, within less than 1 mHz of the first run. If you or anyone else wud like the raw data & graphs, I can send them easily. Tom, enjoyed the article & pics in "Wired". I read it on line. Regards, Bob Martinson, N1VQR -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Van Baak Sent: Saturday, December 22, 2007 5:16 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] HP 5370B question Bob, Can you re-run your test with a different length of loop-back cable? Something between a few more feet and a few more inches is fine. /tvb >I ran my 5370B for one hour, counting its own reference with a one second > gate. The summary of the results are: > > min 9999999.99650 Hz > max 9999999.99963 Hz > avg 9999999.99796 Hz > median 9999999.99787 Hz > > Per the manual's Performance Test 5 (page 4-12) the spec is +/- 0.005 Hz. > It would be nice if my average was 10,000,000.000 HZ but?? From a Time-nuts > thread of several months ago, the adjustment for this result is very touchy > and it's likely you will make the result worse rather then better. Since > mine is in spec, I'll leave it alone. > > I have sent the graphical & raw data to Corby, if anybody else is interested > please advise me of your email address. > > Regards, > Bob Martinson, N1VQR _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.