Hi Yes, this has basically become a debate about weather WAAS sat's do or don't contribute to a directly to a nav solution rather than just provide correction information.
Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of David J Taylor Sent: Thursday, July 11, 2013 12:57 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Speaking of Costas loops (WAAS) Hi >From the US patent: "... and possibility of extending the operating range by allowing increased separation of reference and base receivers by incorporating ionospheric models provided by WAAS" To me that says - position data from WAAS, carrier from GPS. =========================== I had understood that WAAS provided data such as what were dead or problematic satellites, and ionospheric data which allows the positions derived from standard GPS satellites to be more accurately determined through extra corrections, but WAAS satellite transmissions did not of themselves contribute to to a position determination. Was I wrong in this, or perhaps outdated? Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: [email protected] _______________________________________________ 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. _______________________________________________ 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.
