Hi: There are three new civilian GPS signals, L1C, L2C and L5. http://www.prc68.com/I/DAGR.shtml#GPSs The original civilian signal, L1 is at 1575.42 MHz (154 * 10 * F0, F0=1.023 MHz).
L1C is at the same frequency as L1 but uses the code like Japan. The new L2C signal is at 1227.60 MHz (120*10*F0). Allowing for path length corrections. The new L5 signal is at 1176.45 MHz (115*10*F0). This is intended for aircraft safety. It also has the largest frequency difference to L1 so should also be the best for determining the path length through the ionosphere/troposphere allowing for a more accurate time fix. I'm hoping my Polaris Guide receiver will get upgraded firmware to get these signals as well as have WAAS added. See: http://www.prc68.com/I/DAGR.shtml#Pol Are there any new timing GPS receivers that take advantage of the new signals? Have Fun, Brooke Clarke http://www.PRC68.com > Fellow time-nuts, > > GPS IIR-20 was succsessfully launched: > http://www.losangeles.af.mil/news/story.asp?id=123141115 > > Expect it to show up on the receivers eventually. Currently only PRN01 > is unused. > > Cheers, > Magnus > > _______________________________________________ > 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.
