I just got a system that allows me to compare the phase difference
between a reference and an external oscillator.
I am using a Vectron oscillator installed in a HP 5345A counter as
the external oscillator and a PTB-100 as the reference.
How close to the reference should I be able to set the OCXO?
After a 3 day warm up, it appears that I have gotten the OCXO to
within 0.0025 Hz of the Rubidium reference.
I am checking with a strip chart recorder over a three hour period
for the next few days to see if the OCXO stays at this accuracy.
Is it really possible to set an OCXO this close or have I made some
errors in my computation of frequency offset?
Thanks
73
Glenn
WB4UIV
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