On Tue, May 5, 2015 at 2:42 AM, Andrew Cooper <[email protected]> wrote:
> We also ran into the TS2100 1995 bug this weekend.  For us the consequences 
> are a bit more severe...  The telescopes will not point to the right location 
> in the sky without accurate time!

Ouch. I have some friends who work at the Subaru telescope. I'll check
in to see if they're affected.

> For now we have configured a temporary fix...  We set up two units, 
> previously our primary and hot spare.  The first unit is set to use GPS, 
> which of course has the correct time but the wrong date.  The first unit is 
> sending a 1PPS signal to a second unit which is set to 1PPS input mode with a 
> manually set date and time.  We now have all of the IRIG and NTP capability 
> we need and the correct date.

Out of curiosity, is there no way to "prime" the device with the
current date/time (e.g. from a wristwatch) so it can interpret the GPS
week information correctly? I recall that several other devices have
that ability.

Is there a list of other common time-nut devices that are susceptible
to similar issues? Lots of time-nuts use surplus equipment that's no
longer supported and it'd not be fun to have them stop working.

Cheers!
-Pete

-- 
Pete Stephenson
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