I've been tracking my Fury GPSDO (ROM version 1.21) equipped with an Isotemp OXCXO134-10 oscillator for a couple of weeks now and have noticed that the Time Interval (TI) spikes around 20 to 40 nsec everyday at 17:45 UTC (11:45 AM CST local time). There are minor spikes (5 nsec) every 2 to 3 hours, but I find the large spikes to be very curious.
The oscillator itself has no idea of the time of day (does it?), the Fury generated EFC follows the spike and brings the TI back into line within tow or three minutes. There are no unusual charges to the EFC prior to or after the spike. I've already tracked ambient temperature over several days and have seen nothing unusual. I'm going to monitor line voltage next. Has anyone else ever seen such behavior? -- kc0ukk at msosborn dot com _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.