I got the NRCan results from the overnight run, and interestingly there
doesn't seem to be any glitch in the carrier and phase data, despite the
receiver's lock up of position calculation.
(Interesting point -- I started the run at 0200Z on 7 April, after the
rollover event. At that time, the receiver was still operating
normally. I don't know when it froze but it wasn't right at the rollover.)
On 4/7/19 10:43 AM, John Ackermann N8UR wrote:
I was running my newly-acquired Z12 (with 1999 firmware) overnight,
capturing RINEX data via Lady Heather, using Cesium reference.
This morning Lady Heather showed the receiver still tracking satellites
and giving time, but the lat/long/elevation were frozen -- lat and long
were correct, but elevation showed -821 meters! The receiver's own
display showed the same thing -- "99999" as the measurement count, GMT
time incrementing, unchanging lat/long/elevation, -821 meters.
I had to do a complete reset (wipe internal memory) to get the receiver
working again, but now it seems to be tracking normally.
I sent the RINEX file off to NRCan and it will be interesting to see
what the results look like. If anyone is interested, the raw file is
available for study.
John
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