[time-nuts] Dual GPSDO - any advantage?

Mike Feher mfeher at eozinc.com
Tue Apr 10 07:23:29 EDT 2018


Sounds to me like you have two independent systems. I do not believe they can ever be “coherent”. Regards – Mike 

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

848-245-9115

 

-----Original Message-----
From: time-nuts <time-nuts-bounces at febo.com> On Behalf Of donald collie
Sent: Tuesday, April 10, 2018 1:43 AM
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Subject: [time-nuts] Dual GPSDO - any advantage?

 

I`ve just bought two GPSDO`s from China @ US$9-50 each [This is not an error!] They are stated as being new, and use a Trimball dual oven OCXO. I plan to run these in parallel [2 antennas, 2 feedlines, and 2 GPSDO`s] It`s been said that a man with two watches is never happy - unless, of course, they agree with each other ;-). Being identical the outputs should be coherent, unless one becomes faulty [one advantage of having two - any discrepancy and you know something must be wrong]], but is there some crafty way I can squeeze a little more "accuracy" out of two than if I only used one?

TIA for your comments............................................Donald

Brett Collie ZL4GX

 

PS : I have no connection to the eBay seller. The US$9-50 seems to include a basic puck antenna, long downlead, and 4 interseries adaptors _______________________________________________

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