[time-nuts] Thunderbolt temperature anomaly
Stan, W1LE
stanw1le at verizon.net
Tue Mar 30 20:22:35 UTC 2010
Hello Maury,
A Lady Heather screen grab would be helpful in understanding the issue.
How is the power supply doing ?
I once had a flakey power supply that gave me abnormal readings.
Stan, W1LE Cape Cod
msproul wrote:
> I have a Tbolt (labeled Rev. E, 5/31/05) that seems to be working
> properly, except for the
> temperature display in Lady Heather. When I start the program the
> display will come up
> typically showing the temperature as a straight line at 39.749981C and
> DAC voltage is -0.073xxx.
> The temperature and DAC will remain at these values for hours.
> Occasionally
> the temperature will change to 40.749981 or 38.749981. Rarely, it will
> go to 37.749981.
> In all cases, when the temperature shifts it occurs over a few minutes
> and is
> a series of saw-tooth steps. It then remains as a straight line for
> hours.
> Except during the transition, the temperature is always xx.749981.
>
> What could cause this and does it indicate any serious problem?
>
> Other Lady Heather plots I have seen show the temperature plot
> being similar to a sine wave following the small temperature changes.
>
> Thanks for any comments/suggestions.
>
> Maury
>
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