Hi You are going to get a 5x10^-10 to 2x10^-9 per G frequency shift on most of these oscillator. For anything below 5x10^-10 a pretty exotic crystal would be needed...
Bob On Jun 12, 2012, at 7:19 PM, Dan Rae wrote: > On 6/12/2012 2:48 PM, Mark Sims wrote: >> I saw a similar DAC jump when I replaced the SMB pigtail to my board. The >> unit went into a brief holdover and came out with a shift in the dac vaue. >> I would try wiggling the coax connection (without moving the board) and also >> gently tapping around the board (maybe start with the oscillator can) with a >> screwdriver handle to see if anything causes an upset. >> >> >> > > Interesting. I just picked it up gently and rotated it through 90 degrees. > This has produced another 1.5 mV DAC step and corresponding temporary jumps > in the PPs and Temp traces. > > I seem to recall much bigger effects than this when adjusting ovens like the > 10811 which I always would try to adjust in the orientation that they were to > be finally used in, so I really shouldn't be surprised. > > Dan > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
