Stanley Reynolds wrote: > Disabling all the GPS receivers at the same time would allow a comparison of > the hold over of each. As we are also logging the temp and power some changes > in these would also help determine how "good" each DO is as far as stability. > Stanley > > You still need a frequency comparison scheme with sufficient resolution and low intrinsic noise (perhaps 1E-12 or better at 1sec). Since the long term average frequencies of the various oscillators are not necessarily identical in hold mode, a phase comparison scheme with a relatively wide dynamic range is required to avoid frequent phase wrapping.
Bruce _______________________________________________ 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.
