Hi All,
My GPSDO based from VE2ZAZ design but I have a few question I do not clearly
understand about GPSDO, like :
1.How important the quality of 1 PPS signal based from jitter etc what the
difference I will get between timing purpose GPS module like Ublox 6T or
trimble resolution T with a position GPS module like ublox 6M or other in term
of stability, accuracy and phase noise.
2. I understand short time stability from OCXO is better than GPSDO ? can
someone give me a clue what the time constant need for OCXO control (in my
application 30 second) is that enough ?
3. I have few Rubidium oscillator and I read somewhere (I believe in KE5FX web)
that GPSDO with rubidium osc is hard to beat, in what way ? short time, long
time, phase noise.
My goal is "simple" I have access to national time reference lab ( an active
Maser H ) I want to compare my reference to them off course there is no way I
have same stability but anything not so "embrace" is fine to me
Thank you for all opinion/advice.
Anton Hendra
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