[rc-oncore] [Bug 2872] Oncore is offset by current GPS-UTC delta at startup

bugzilla-daemon at ntp.org bugzilla-daemon at ntp.org
Wed Aug 26 00:10:15 UTC 2015


--- Comment #2 from Majdi S. Abbas <msa at latt.net> 2015-08-26 00:10:15 UTC ---
(In reply to comment #1)
> GPS receivers only know the current UTC to GPS time offset immediately after
> power-up if they save the latest UTC parameter set received from the satellites
> in a non-volatile memory while powered off.


In this case the receiver has a backup battery, and a valid almanac that it
loads and warm starts with, so either it does not load the current offset
offset from the almanac, or does not take it into account but starts providing
a valid signal indication (TRAIM is on in this configuration) and time that is
offset until received again, or loaded again.

At this point I just need someone who has more than the 2-3 Oncore receivers
that I have looking for this behavior, I think.  It's not clear how widespread
this bug is.


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