); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] From: "Tom Van Baak" <[EMAIL PROTECTED]> Subject: Re: [time-nuts] Cs stability Date: Tue, 17 Jul 2007 00:21:37 -0700 Message-ID: <[EMAIL PROTECTED]>
> ); SAEximRunCond expanded to false > Errors-To: [EMAIL PROTECTED] > > > I guess that is why some GPS antenna cables is temperature-stabilized as > > well > > as the cement-pidestal for the GPS antenna as it stands on solid rock. The > > same > > place have controlled environment for the cesiums and hydrogens, together > > with > > UPS and disel-engine that kicks in for longer runs. > > > > Or I could be wrong... :) > > Magnus, Tom, > This is true (temperature stabilization) for sites that do mm > level survey and ps level time transfer, using all the tricks > in the GPS book. > > On the other hand, I think for most of us that play at the > meter and ns levels with cheap OEM receivers and plastic > L1 antennas the coax cable temperature issue is quite > overblown. Or if I'm wrong, show me the data. I never claimed otherwise. I mearly pointed out that _some_ antennas have that arrangement among a number of others. Clearly few of us happy amatuers play in that league. Some of us have GPS receivers and antennas at that level. 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.
