Jerry, maybe you have some old Tantals in short?
Karl Am Fr., 5. Nov. 2021 um 01:21 Uhr schrieb <[email protected]>: > My earlier post described a problem where the XO failed to see any > satellites after many years of continuous use. This turned out to be a bad > Oncore UT+ GPS and after replacing it, the XO quickly tracked and locked a > 3D fix onto 4 satellites. I left it open out of the chassis on the bench > thinking I would next do a 15-->10Mhz conversion but I noticed after a hour > or so that a new fault appeared "OSC PLL LOCK FAILURE". I power down and > up > and again looked fine for a while but the same fault reappeared. I checked > the Datum 10Mhz output before and after and it was within some 10mHz. No > change before or after the fault in control voltage (~15vdc), Temp (39.5C), > Ant Feed current (16mA), Osc voltage (~23vdc) . However the VFC > initially was 4.85 and at time of failure it was 0.275vdc. I assume that > issue could be excessive Datum osc jitter or poor VFC, etc. Is tracking > down the problem worth the effort? . I would like to try a repair if > only to hone my skills so any advice would be very much appreciated. > > Jerry NY2KW > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > _______________________________________________ > time-nuts mailing list -- [email protected] -- To unsubscribe send > an email to [email protected] > To unsubscribe, go to and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
