[time-nuts] Lucent GPS UTC confusion

Joseph Gray jgray at zianet.com
Thu Mar 17 09:09:02 EDT 2016


Hal,

I did the "*TST?" command, which seemed to do a power cycle. The
Status screen shows "GPS 1PPS Synchronized to UTC".

Joe Gray
W5JG


On Wed, Mar 16, 2016 at 11:30 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
>
> jgray at zianet.com said:
>> I noticed on the Status screen that the Lucent unit said the PPS was locked
>> to GPS, not UTC, as the Z3801A is. So, I issued ":DIAG:GPS:UTC 1" and "TST?"
>> to correct this.
>
>> But things are not as I expected. Displaying the clock for both GPSDO's in
>> Z38xx now shows them to be 17 seconds different, which is of course the leap
>> seconds.
>
>> This seems backwards. With both units set to UTC, why are they showing
>> different times?
>
> My notes about that include "needs power cycle"
>
>
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