[time-nuts] Calibrating local standards
Perry Sandeen
sandeenpa at yahoo.com
Thu Oct 7 01:12:48 UTC 2010
Gents,
Wrote: Have you ever tried to adjust a local standard to better than 1 in 10E7 using WWV or CHU?
Also wrote: I have three Rb standards to go along with my two Thunderbolts.
Wrote a reply: And which one do you believe? If any?
My experience is this: Since all four of my rubidium oscillators read a consistent -110 to -890 pico-seconds error for over 48 hours compared to two Lucent GPS receivers using two HP 5370B TIC’s and about a 20 milli-Hz difference at 15 MHz. So unless I saw a real wacky shifting number, I’d believe them all for anything even an advanced amateur could think of.
Regards,
Perrier
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