[time-nuts] Tbolt temperature sensor
GandalfG8 at aol.com
GandalfG8 at aol.com
Thu Feb 5 19:25:19 UTC 2009
In a message dated 05/02/2009 18:44:44 GMT Standard Time, holrum at hotmail.com
writes:
The whole purpose of a GPSDO with an expensive double oven OCXO is to
provide extremely high quality holdover performance when GPS signals go away. To
achieve this level of performance one needs to compensate for the affects of
temperature on the parts of the system outside the oven. 0.5C resolution is
not up to the task of maintaining parts per trillion accuracy. There does
not appear to be any other temperature sensor in the Tbolt
---------------
I'm still not convinced.
There's going to be another very important temperature sensor inside the
Thunderbolt and that's the one inside the ovens, perhaps even two in a double
oven.
I understand where you're coming from but, given the apparent lack of
evidence to support the sudden deterioration in performance your findings would
suggest, does it not seem more likely that in fact this sensor is not involved
in the conditioning process?
regards
Nigel
GM8PZR
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