[time-nuts] Thunderbolt - temperature

Peter Vince pvince at theiet.org
Fri Jul 18 13:22:09 EDT 2008

I have one of the Trimble Z3801 look-alikes.  It only seems to report 
its temperature in half-degree steps, but I left it running for 
nearly 27 hours, and saw a couple of 1-second 1 degree spikes during 
that time - see attached graph.  Could this be the same thing you are 
seeing with your real Thunderbolts?  There is no 20-second decay that 
you are seeing, but then the resolution is very coarse.

The item has several part numbers on its label:

P/N: NTPX26AB-01	D/C: 9828
P/N: 34304-00 -11	Oscillator "T"

(barcode)	NNTM74TR0081

and has a small label under the barcode with 1.56 on it - firmware version?


	Peter Vince  (G8ZZR, London, England)
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