According to these web sites, the GPSDO provides traceability to NIST: http://www.nist.gov/physlab/div847/grp40/gpsarchive.cfm http://tf.nist.gov/general/pdf/1305.pdf
As a "sanity" check, it would be prudent to periodically cross-check your GPSDO against a different frequency standard (e.g., cesium or WWVB or another version/brand GPSDO). Greg ----- Original Message ----- From: "Michael Baker" <mp...@clanbaker.org> To: <time-nuts@febo.com> Sent: Monday, June 28, 2010 2:57 PM Subject: [time-nuts] Traceable to NIST...?? Hello, Time Nutters-- Traceable to NIST...? All you need is this LPRO Rb osc being disciplined by a GPSDO and you can claim NIST traceability? Not the way I understand the rules.... http://www.tenmhz.com/GPSDO.htm What say the list? Mike Baker ---------------------- > Today’s communication devices and protocols often require > an accurate timebase. Leveraging the best technology of > yesterday and today, we are proud to bring you the world's > first rubidium GPSDO under $500! The LPRO-101 by Efratom® > /Symmetricom®, stabilized by a high-sensitivity GPS system, > provides affordable, traceable precision. Watch our DEMO * Features: Guaranteed Accurate to < 5x10-11, Traceable to NIST when LED is green * Typical accuracy is even better → Typical Accuracy Charted * Low phase noise 10 MHz, 50Ω BNC output at +7 dBm * Includes power supply and high-gain GPS antenna * Phase Locked for absolute accuracy over long time intervals _______________________________________________ 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.
