Hi guys, some good news for our European members: the EU officially "enabled" the EGNOS service as of today. For those of you that speak German, here is a Wiki link (there are English links on the bottom of the page too): _http://de.wikipedia.org/wiki/European_Geostationary_Navigation_Overlay_Service_ (http://de.wikipedia.org/wiki/European_Geostationary_Navigation_Overlay_Service) For those of you not familiar with SBAS (Sat. Based Augmentation System(s), there are WAAS, EGNOS, and MSAS signals being sent out by geo-stationary Sats in the US, Europe, and Asia respectively.
These Sats send out differential correction signals (much like DGPS) over the same GPS Antenna, and allow accuracies down from ~10 Meters to ~1 Meter or better with SBAS. Timing receivers should also be significantly improved with SBAS enabled. As a side-note, all of our FireFly products have been SBAS enabled by default since their market introduction almost two years ago, and can thus generate highly accurate position fixes as well. In flight testing during maneuvering in a small jet our FireFly-IIA boards have been tested to have horizontal position errors of less than 0.6 Meters when compared to a high-end reference receiver. This accuracy is possible mostly due to SBAS/WAAS corrections, and our firmware dynamically adjusting the Kallmann filters inside the GPS receiver based on velocity and other factors. Now if we could only get an equivalent 2ns - 3ns timing accuracy out of those receivers as well... bye, Said _______________________________________________ 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.
