Hi If you have one of the 10811's out of a Z3801, then it's EFC range is ~ 10X a "normal" part. There apparently are other odd EFC ranges out there.
Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Chris Howard Sent: Monday, November 05, 2012 4:53 PM To: [email protected] Subject: Re: [time-nuts] getting a grip on 10811 drift (beginner-ishquestion) On 11/5/2012 3:16 PM, Richard H McCorkle wrote: > The EFC specs on a 10811 are a frequency change of > 1 Hz over > a -5v to +5v EFC span or a sensitivity of roughly 1e-8 per volt > (varies widely up to about 3e-8 / volt on some units) so you can > get a ballpark idea of the age rate by looking at the EFC voltage > change over 24-hour periods. I have been running it continuously for quite a while. I fired it up from cold start early this year and have had it running almost continuously, just a few power cycles in that time. Over the period of three weeks ending today the control voltage has move approximately 1 volt. That fits within your 0.05 volts per day. Thanks to everyone. Lots of interesting and helpful information. Chris Howard _______________________________________________ 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.
