Thread: Homebrew GPSDO
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Old 2nd Mar 2021, 11:32 am   #8
Vintage_RC
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Join Date: Sep 2018
Location: Twickenham, London, UK.
Posts: 316
Default Re: Homebrew GPSDO

I have a Quartzlock 2A off air standard to which I have incorporated a GPSDO based on a Jupiter GPS Rx. The GPSDO uses the existing Quartzlock's circuitry from the phase locked loop onwards. I have provided a switch so that I can flip between off air or GPS. I keep meaning to post some details of it on the forum with some photos. The point I was leading up to was that comparing the two reference sources on a Racal 9839 (last digit 0.1Hz) I have never seen any difference between the two.
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