Said, See my post to Matt. I have some useful info on g correction techniques.
Rob Kimberley -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 05 June 2008 18:02 To: time-nuts@febo.com Subject: [time-nuts] low-g OCXO GPSDO Hi guys, my apologies for the commercial part in the email. Does anyone have information on the typical g-sensitivity of crystals/oscillators? We see about 1 to 2E-09 frequency change when turning typical OCXO's around on their back (a 2g turn-over). We introduced a low-g GPSDO that is especially useful in mobile applications, for example inside a vehicle, or carried around by a user in a backpack etc. A "normal" OCXO would drift significantly when being turned around in any direction. That's one of the big advantages of Rb's, they compensate for the crystal error after a short drift... For that kind of use, we are putting a special very low-g OCXO on our board to reduce the frequency drift as much as possible (>10x improvement desired over a standard crystal). You can see a picture in our press release at: _http://www.marketwire.com/mw/release.do?id=865007&sourceType=3_ (http://www.marketwire.com/mw/release.do?id=865007&sourceType=3) I am very interested to see what experience folks have with low-g crystals and OCXO's. Does anyone have experience with using active Crystal compensation for varying g-vectors? How about special crystals, or three-axis-crystal compensated systems etc? thanks, bye, Said **************Get trade secrets for amazing burgers. Watch "Cooking with Tyler Florence" on AOL Food. (http://food.aol.com/tyler-florence?video=4?&NCID=aolfod00030000000002) _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.