Hi! On 14 September 2011 05:36, Mark Sims <[email protected]> wrote:
> > Lady Heather's precision (nominal 48 hour) survey collects data over > multiple 1 hour periods. With 48 hours of data, multipath and transient > disturbances are minimized. It applies weighted median filters to the data > and does other statistical analysis to arrive at a final location. With a > good choke-ring antenna you can get within under a foot. With a crappy > patch antenna without a ground plane maybe 6 feet. Simple averaging of the > survey samples does not perform nearly as well. > Will do. Thanks! > As far as Lady Heather not working with other GPSDO's... well, She has > good taste. The Trimble Thunderbolt is far and away the best time-nut GPSDO > out there. It is highly configurable and controllable, comes with a very > good OCXO, and is dirt stinkin' cheap. If you dot all your i's and cross > all your t's and pay very close attention to the details you can coax > ridiculously high performance out of the tiny little box... rivaling the > best cesium references made for under $200. > This is why I am looking at some units on eBay. :-) One, perhaps, silly question: when it looses lock it continues to issue the PPS (hold-over mode) but does the second numbering continues also through RS-232? This is going to be used for an NTP server. Cheers, Miguel _______________________________________________ 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.
