Geoff, I'm not in a position to check at present, but have also noticed discrepancies in the time pips in the past. I'd not use a GPS receiver for this, as they can easily indicate a second or so out. I use a GPS Disciplined Receiver (HP Z3801A or Trimble NTGS50AA) for the job.
I suggest you talk to Dr Tim Armstrong (t.armstr...@irl.cri.nz). He's the guy who looks after the official NZ time service, which is the source of those time pips. The equipment is at Gracefield in a room with three Caesium standards. He should be able to explain how the time pips are distributed, and you may find (if you encourage him a little!) that he is also interested in measuring their delivered accuracy as well. Regards, Murray ZL1BPU _______________________________________________ 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.
