That's quite possible, another option is that aviation receivers may err on the side of caution and not use GPS signals that are considered to be degraded beyond a certain level. This is just speculation on my part.
As other posters have pointed it seems a bit ironic that shortly after shutting down Loran in the US this issue emerges, although I seem to recall there is a move towards a new GPS frequency band for safety of life applications (the L5 Signal IIRC ?) Your comment about the improvements in signal processing is a good one and pondering this issue a bit more I wonder how much advancement has occurred in timing receivers over the years versus consumer devices which likely have a shorter product cycle. This may lead to more issues in timing applications. ----- Original Message ---- From: jimlux <[email protected]> To: [email protected] Sent: Wed, February 2, 2011 6:45:29 AM Subject: Re: [time-nuts] From GPS World - Lightsquared has been given the goahead what was interesting is that the jamming/fail to get fix was at a closer distance for the consumer receiver than for the FAA approved receiver for aircraft. Maybe it's better signal processing in the (presumably newer) consumer receiver. _______________________________________________ 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.
