[MRCA] GPS disciplined oscillators

Mike Feher n4fs at eozinc.com
Tue Oct 4 14:01:54 EDT 2022


Ray - 

 

A Cesium would be an overkill. Besides, the cost for a new one would be
extremely high and a used on more than likely has a tube that is dead or
depleted. A Rubidium is a lot more cost effective and lasts longer. BTW,
there are distribution amps for video that are pretty cheap on eBay. You can
get about 12 outputs from one. They are also 75 ohms, but that is not a bid
deal for most equipment. I bought several of them years ago when I was into
the "time-nut" mode. I also have 3 or 4 Cesiums, and dozens of Rubidiums. 73
- Mike 

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

 

From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf
Of Ray Fantini
Sent: Tuesday, October 4, 2022 1:48 PM
To: MMRCG at groups.io; mrca at mailman.qth.net; HarrisRadio at groups.io
Subject: [MRCA] GPS disciplined oscillators

 

Not relay looking for big improvement or anything with the big Harris
radios, just maybe trying to find another reason to justify the purchase and
next building of the distribution for the box. Have a Motorola service
monitor and Agilent spectrum analyzer that I use all the time and think they
are accurate to within maybe ten or one hundred cycles and not wanting to
send them out for annual calibration I figure that with this box I can get
to one cycle or so that would be good. 

A Cesium Beam standard would be perhaps the coolest method, but a  GPS
disciplined oscillator got to be next and way better than my old method of
beating the oscillators against WWV.

 

Ray F/KA3EKH

 

 

 

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