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Discussion of precise time and frequency measurement

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End of the World, or beginning of a new one?

BM
Bob Martin
Thu, Jul 2, 2015 8:01 PM

As I look at my Tymserve 2100 sitting in the rack to my left, the date it's displaying is JUL 02 2015.

So the week rollover bug was coupled to the leap second? No wine to drink today (it's still early)...

Anyone else with a TS2100 that's suddenly acting strange, er, correct for the first time in a while?

bob k6rtm

As I look at my Tymserve 2100 sitting in the rack to my left, the date it's displaying is JUL 02 2015. So the week rollover bug was coupled to the leap second? No wine to drink today (it's still early)... Anyone else with a TS2100 that's suddenly acting strange, er, correct for the first time in a while? bob k6rtm
MA
Michael A. Waldron
Fri, Jul 3, 2015 12:27 PM

Olivier from Heol says that it will revert to 1995 again in a few months, although he was unspecific as to the exact reasons he said they simulated it in their lab.

I've decided I'd like to upgrade the GPS in my 2100-rb, but it will probably be a little while before I get the job done.

-Mike

On 7/2/2015 3:01 PM, Bob Martin wrote:

As I look at my Tymserve 2100 sitting in the rack to my left, the date it's displaying is JUL 02 2015.

So the week rollover bug was coupled to the leap second? No wine to drink today (it's still early)...

Anyone else with a TS2100 that's suddenly acting strange, er, correct for the first time in a while?

bob k6rtm


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--
Michael A. Waldron, AE0MW
http://www.mikew.org

Olivier from Heol says that it will revert to 1995 again in a few months, although he was unspecific as to the exact reasons he said they simulated it in their lab. I've decided I'd like to upgrade the GPS in my 2100-rb, but it will probably be a little while before I get the job done. -Mike On 7/2/2015 3:01 PM, Bob Martin wrote: > As I look at my Tymserve 2100 sitting in the rack to my left, the date it's displaying is JUL 02 2015. > > So the week rollover bug was coupled to the leap second? No wine to drink today (it's still early)... > > Anyone else with a TS2100 that's suddenly acting strange, er, correct for the first time in a while? > > bob k6rtm > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Michael A. Waldron, AE0MW http://www.mikew.org
O-
olivier - heol design
Sat, Jul 4, 2015 3:08 PM

Michael A. Waldron <lists@...> writes:

Olivier from Heol says that it will revert to 1995 again in a few

months, although he was unspecific as to the

exact reasons he said they simulated it in their lab.

I've decided I'd like to upgrade the GPS in my 2100-rb, but it will

probably be a little while before I get the

job done.

-Mike

On 7/2/2015 3:01 PM, Bob Martin wrote:

As I look at my Tymserve 2100 sitting in the rack to my left, the

date it's displaying is JUL 02 2015.

So the week rollover bug was coupled to the leap second? No wine to

drink today (it's still early)...

Anyone else with a TS2100 that's suddenly acting strange, er,

correct for the first time in a while?

bob k6rtm


time-nuts mailing list -- time-nuts@...
To unsubscribe, go to https://www.febo.com/cgi-

bin/mailman/listinfo/time-nuts

and follow the instructions there.

Hello,

Yes the Tymserve and other similar DATUM / Symmetricom products which
use the Trimble ACE board will fail again in 2016. This is due to the
way the GPS epoch is calculated inside the 2100 : the DATUM engineers
estimated the future leap second insertions to determine GPS epochs,
which was not a so good idea... Our N024 GPS board inserted insteas of
the ACE board corrects this bug, as well as offering high GPS
sensitivity and fast startup. We offer warranty for the next 20 years.

Regards

Olivier

Michael A. Waldron <lists@...> writes: > > Olivier from Heol says that it will revert to 1995 again in a few months, although he was unspecific as to the > exact reasons he said they simulated it in their lab. > > I've decided I'd like to upgrade the GPS in my 2100-rb, but it will probably be a little while before I get the > job done. > > -Mike > > On 7/2/2015 3:01 PM, Bob Martin wrote: > > As I look at my Tymserve 2100 sitting in the rack to my left, the date it's displaying is JUL 02 2015. > > > > So the week rollover bug was coupled to the leap second? No wine to drink today (it's still early)... > > > > Anyone else with a TS2100 that's suddenly acting strange, er, correct for the first time in a while? > > > > bob k6rtm > > > > > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@... > > To unsubscribe, go to https://www.febo.com/cgi- bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > Hello, Yes the Tymserve and other similar DATUM / Symmetricom products which use the Trimble ACE board will fail again in 2016. This is due to the way the GPS epoch is calculated inside the 2100 : the DATUM engineers estimated the future leap second insertions to determine GPS epochs, which was not a so good idea... Our N024 GPS board inserted insteas of the ACE board corrects this bug, as well as offering high GPS sensitivity and fast startup. We offer warranty for the next 20 years. Regards Olivier