I guess at this point you havn't read the bit I posted from a *much* more authoratative source than I ... RF Jim (Veteran of GPS system work back in the late 70's) ----- Original Message ----- From: "Dave Tweed" To: Sent: Saturday, November 23, 2002 10:58 AM Subject: Re: [OT]: (Report of) GPS anomalies > RF Jim wrote: > > ... but the C/A code was *initially* a means to 'bootstrap up' > > and acquire the "PRECISION (P) code" (chip rate 10.23 MHz) > > which was actually intended for precise position location by users of > > the system. > > Yes, that was the original intention, but actual use proved otherwise. > If you have a clock and correlators that are capable of using the P code, > they'll do just as well on the C/A code. The key is how well you can align > on the transitions between chips, not how far apart they are. > > -- Dave Tweed > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads