[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gpsd-users] ✘Some GPS to fail on April 6 GPS rollover
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-users] ✘Some GPS to fail on April 6 GPS rollover |
Date: |
Tue, 2 Apr 2019 13:14:07 -0700 |
Yo Mike!
On Tue, 2 Apr 2019 20:49:21 +0100
Mike Tubby <address@hidden> wrote:
> Its worse than that ...
yes, for some.
> Firstly, some older receivers will stop working altogether, while
> others will output wrong week numbers forever. We're talking old
> Rockwell receivers and old Trimble receivers like the S-Vee-Six, ACE,
> ACE-II.
Actually, I know a lot of people that still use the Trimbles that
failed in 1999, last GPS rollover. They still have some of the
best PPS, just ignore the date.
> Another class of GPS receivers fails to work in week zero but
> recovers when we get back to week no. 1 - some of these are used in
> Spectracom frequency and time master clocks and run for a whole week
> in 'hold over'.
And some Telits will fail in November 2019 due to a hard coded
rollover in their firmware. From the fixes to the last rollover.
> Your Mileage [or Week Number] May Vary ;-)
Yup. Fingers crossed.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden Tel:+1 541 382 8588
Veritas liberabit vos. -- Quid est veritas?
"If you can’t measure it, you can’t improve it." - Lord Kelvin
pgp9msSL_ipgD.pgp
Description: OpenPGP digital signature