From: John Ackermann N8UR <[EMAIL PROTECTED]> Subject: Re: [time-nuts] Z3801A good GPS-receiver Date: Mon, 27 Jun 2005 08:42:27 -0400 Message-ID: <[EMAIL PROTECTED]>
> Magnus Danielson wrote: > > > Yes, I've noticed all the links, software and all that. Being a *nix guy I > > naturally care to have the source and control. > > You're welcome to my Perl stuff -- not sure if I have it on my website > under http://www.febo.com/time-freq/gps (look for the Z3801A link) but > if you don't see it, drop me a line and I'll get it for you. I think I actually looked at the code the other night. ;O) > > One of the things I have failed to find is the type of GPS receiver > > operation > > in action. I assume that it is a C/A signal (it only says L1), but does it > > use > > HPs brilliant solution to track both carrier and code variations to make > > compensations similar to the L1/L2 P(Y) code-less tracking? I think I have > > the article around here somewhere. It is not a carrier-phase type of > > receiver > > as I have gathered it. Right? > > The receiver is the old 6 channel Motorola Oncore, using standard L1 C/A > signal. The thing is, in the article "Recovering UTC(USNO,MC) with increased accuracy using a fixed L1-CA code, GPS receiver" by R.P. Giffard, Agilent Lab PTTI-32 (page 97 in the compendium), they apply it on a Motorola Oncore. But then I did not recall the date, and the PTTI-32 was in 2000 which is too late for the Z3801A I guess. Interesting article, but it was some time I read it myself. Cheers, Magnus _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
