[time-nuts] Thunderbolt performance vs temperature sensor

SAIDJACK at aol.com SAIDJACK at aol.com
Mon Mar 9 04:20:35 UTC 2009

Hi Holrum,
thanks for sending the plot. It's tough to see on this plot with all that  
To see how the relationship really works, the unit should be in holdover..  
Would you have a plot of EFC versus temp in holdover?
In a message dated 3/8/2009 13:42:41 Pacific Daylight Time,  
holrum at hotmail.com writes:

Hello  Said,

Attached is a screen dump of a run that John Miles did.  You  can see that 
the envelope of the DAC voltage follows the temperature curve  (inversely).   On 
a finer scale the DAC voltage follows the PPS  error.  This plot was done 
with the unit locked to GPS.  I believe  the time scale is 10 secs/pixel (1 hr 
per major horizontal  division).

More information about the time-nuts mailing list