[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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