[time-nuts] ARRL FMT

John Ackermann N8UR jra at febo.com
Sat Oct 28 12:24:32 UTC 2006


W4wj at aol.com said the following on 10/27/2006 10:06 PM:

> If you are going to submit in the tenths of Hz, I would  suggest that you 
> only measure during the announced time for that  band.

Actually, the transmissions seem stable enough over time that I haven't
noticed any real difference in frequency over the 15 minute span.  I've
basically worked with the best chunk of signal I can find during the period.

To be honest, the greatest weak point in the test has been ARRL's
measurement system.  Many of us believe that last year they mis-measured
the 160M signal by about 0.4 Hz, due probably to interference from the
other transmissions as they were measuring the signal off the air into a
counter, and not from a direct tap into the antenna line.

John




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