[time-nuts] ARRL 2006 Frequency Measuring Test

Didier Juges didier at cox.net
Wed Oct 18 23:26:41 EDT 2006


I had planned to participate the last 2 years, but got distracted both 
times. Hopefully, this year will be the charm :-)

I better have my GPS stabilized clock working by then (to drive the HP 
3586A receiver, and the HP 3570A counter for the decoded audio), no more 
excuses...

Interestingly, the HP 5370A measures the 10 MHz timebase of the 3586 as 
10,000,000.010 Hz after warmup (0.1sec gate time), and without any 
adjustment. Both use 10811 crystal ovens (high stability option). I 
calibrated the 3586 against WWV earlier this year, which could only get 
me to within 0.1Hz anyhow) but I would be surprised if the 5370A (just 
purchased) has been calibrated in the last 10 years.

Didier KO4BB

W4wj at aol.com wrote:
>  
> In a message dated 10/18/2006 12:26:09 A.M. Eastern Daylight Time,  
> kb7nie at arrl.net writes:
>
> The  November QST has an announcement for the "2006 Frequency Measuring Test"
> (  www.arrl.org/w1aw/fmt - though the 2006 announcement has not made it to
> the  website yet).  The object is to determine as accurately as possible  the
> carrier frequency of a signal sent from W1AW on the 160m, 80m and  40m
> bands.  There will also be a signal sent from the west coast on  the 40m
> band.  A lot of time nuts are hams.  Who plans on  participating?
>
> Henry
>   




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