: [time-nuts] Testing a LPRO RB
Lady Heather's osc drift rate calculation does assume that
the temperature has been stabilized. John DuBois and I did
quite a bit of work to find a way to unwind the osc
parameters from the available unstabilized reported data
using SciLab on the log files
time and frequency measurement
Betreff: Re: [time-nuts] Testing a LPRO RB
There is no mention in the AN1002 (GPS disciplined Stratum 2
clock) of the US patent 7,711,230 and that patent (on optical
waveguides) has no mention of temperature correction or
tempco extraction...
On Thu, Feb
An: Discussion of precise time and frequency measurement
Betreff: Re: [time-nuts] Testing a LPRO RB
There is no mention in the AN1002 (GPS disciplined Stratum 2
clock) of the US patent 7,711,230 and that patent (on optical
waveguides) has no mention of temperature correction or
tempco
In additional to the standard ADEV answers,
Two important additional performance numbers to consider when testing
and evaluating a RB Osc, are its TempCo, (as in freq change per degC)
and its Ageing rate, (as in drift rate per day).
Anyone with a spare TBolt can measure them.
One simple method
Lady Heather's osc drift rate calculation does assume that the temperature has
been stabilized. John DuBois and I did quite a bit of work to find a way to
unwind the osc parameters from the available unstabilized reported data using
SciLab on the log files, but nothing seemed to work
full temp cycles.
I've not yet figured out how to get LH to give accurate TempCo number, so I
do it the way I described by line up plots
ws.
**
[time-nuts] Testing a LPRO RB
Mark Sims holrum at hotmail.com
Lady Heather's osc drift rate calculation does assume that the temperature
Betreff: [time-nuts] Testing a LPRO RB
Lady Heather's osc drift rate calculation does assume that
the temperature has been stabilized. John DuBois and I did
quite a bit of work to find a way to unwind the osc
parameters from the available unstabilized reported data
using SciLab
