G'Day All, Thanks for adding to me to this group.
I had an application at my workplace where we sent out GPS simulator out for calibration, and it was found its OCXO was drifting and unstable. We had no equipment at work, with the required resolution and accuracy to measure this drift, so to add to my personal test gear I purchased a Chinese GPSDO which was built around a Trimble unit, A gentric Chinese GPSDO and a symmetricom GPSDO pcb. Below are links to some of the time toys I have purchased, in addition to an Agilent 53132A counter. I have had the Trimble acting as a timebase for the 53132A and am measuring the symmetricom pcb. This board has a new OCXO from digikey fitted - Connor Winfield / OH200-71005SV-010.0M I am chasing 0.001hz accuracy - short and long term, is this an achievable goal with what I have? Here is the lastest results over 48 hours after have the GPSDO's operating for over a week. Average MHz 9.999999999990 Standard deviaion 1.42841E-09 Max 10.000000006275 Min 9.999999992006 Opinions would be appreciated! Cheers Rob https://www.ebay.com.au/itm/264742751023?ssPageName=STRK%3AMEBIDX%3AIT&_trks id=p2060353.m2749.l2649 https://www.aliexpress.com/item/1005001868503492.html?spm=a2g0s.9042311.0.0. 24914c4dOxEx60 https://www.aliexpress.com/item/4000169088065.html?spm=a2g0s.9042311.0.0.249 14c4dOxEx60 https://www.aliexpress.com/item/4000920979852.html?spm=a2g0s.9042311.0.0.249 14c4dOxEx60 https://www.aliexpress.com/item/4000925507493.html?spm=a2g0s.9042311.0.0.249 14c4dOxEx60 _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
