[time-nuts] FE 5680 A GPSDO (frequency control)

[EWKehren at aol.com]

I probably should have called it more correctly frequency  control. Thanks 
to the help from Scott N5TNL we clearly where able to watch the  DDS as fan 
cooling was added and removed from the Rb. Only a small change  resulted in 
the DDS tuning word changing by 89 which is a frequency change of 6  e-11. 
The source has to be a temperature sensing element feeding one input to  the 
4 channel 12 bit ADC. Some one please work this issue identify and  disable 
that sensor and run a test verifying that tuning is not  lost.
Thank you
Bert Kehren