[time-nuts] Question on crystal jumps
SAIDJACK at aol.com
SAIDJACK at aol.com
Fri Oct 24 21:54:13 UTC 2008
Hi Antonio,
no restoring jump happened within a couple of days from that jump. I think
it's permanent.
Unfortunately I don't have a date/time for this jump.
The best resource for dated graphical data is probably realhamradio's GPSCon
links, even though half of those links seem to have been last updated years
ago :)
_http://www.realhamradio.com/GPS_websites_list.htm_
(http://www.realhamradio.com/GPS_websites_list.htm)
You can see a pre-production Fury on there at the Universidad de Colima,
it's a notorious jumper. It will be quiet for weeks, then jump significantly for
some time. They don't want to have the unit replaced with a good one though,
which makes for interesting reading.
bye,
Said
In a message dated 10/24/2008 13:28:43 Pacific Daylight Time,
iovane at inwind.it writes:
Thanks, Said.
What seldom happens to my tuning forks is similar to your
brown line, of course.
Do you have date and time of this beatiful jump?
Have you observed, by chance, a negative (restoring) jump at any time after
this jump?
(the sense of the latter question is that, if you observed a
restoring jump one would think of metastability (whatever the
triggering cause), if you didn't happen then both of the
possibilities remain open, that is metastability and
permanent modifications in the crystal as pointed out by
Neville).
Antonio I8IOV
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