From: Chuck Harris <[EMAIL PROTECTED]> Subject: Re: [time-nuts] Cs stability Date: Mon, 16 Jul 2007 21:55:26 -0400 Message-ID: <[EMAIL PROTECTED]>
> ); SAEximRunCond expanded to false > Errors-To: [EMAIL PROTECTED] > > Tom Van Baak wrote: > > ); SAEximRunCond expanded to false > > Errors-To: [EMAIL PROTECTED] > > > >> For example tilting the Cs unit by 90 degrees will typically give an error > >> > >> of about 1E-09 or so. > > > > Have you tried this with your FTS 4050? Anyone else do > > this with a 4060 or hp 5061? > > I'm pretty sure that back when my FTS4050 was still working > it didn't care one little bit about orientation. Perhaps > yours has lost its magnetic shielding, and is reacting to > the change in the orientation of the Earth's magnetic field? It seems a little high a number still. > The C'beam standard package in the FTS4050 is an FTS5000 which > was designed to be used in all sorts of 28V applications, including > portable standards and avionics. You don't happend to have more detailed FTS1200 specs and maybe schematics? I assume that it is an SC-cut crystal in there, but it might be AT-cut. Cheers, Magnus _______________________________________________ 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.
