The original VP Oncore Engineering Notes document can be found here: http://www.synergy-gps.com/index.php?option=com_content&task=view&id=35&Itemid=60 Unlike later 8 channel UT, UT+ and 12 channel M12+ and M12M timing receivers, the VP Oncore included an "Idle Mode." If the VP Oncore receives an @@Cf "Set to Defaults" command, it will remain in Idle Mode until given a @@Cg command which puts the receiver in Position Mode. The 6 channel @@Ba or the 8 channel @@Ea command will then produce the Position Message. The full VP Oncore Command/Reply message set is available here: http://www.synergy-gps.com/images/stories/guides/vpcommands.pdf Art Sepin
________________________________ From: [email protected] on behalf of Hui Zhang Sent: Sun 9/16/2012 6:38 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Z3801 Replacement GPS Receiver Card I just bought a second-hand Z3801A, it also had a error message when self test - GPS Rcv error, and I saw a red LED on main board on. I want test it alone but I don't know GPS board's pin define, can someone tell me? Thanks. Hui At 2012-09-16 21:20:26,"Azelio Boriani" <[email protected]> wrote: >Anyway, are you sure that the GPS unit is faulty? Can you test it alone? >The unit is responsive on the serial port? Is the Z3801A sending commands? >Can you verify with a 'scope on the serial line if there is any signal? > >On Sun, Sep 16, 2012 at 2:54 PM, Mike S <[email protected]> wrote: > >> On 9/15/2012 2:11 PM, paul swed wrote: >> >>> Then respond back with whatever the response might be and then simply pass >>> through in both direction whatever comes next. >>> Could an updated rcvr be used. >>> Is this init command really the only gotcha? >>> >> >> It's more than just the init command. The z3801a also sends @@Ca, @@Cg, >> @@Ab, @@Ah, @@Aj, @@Ak, @@Al, @@An, @@Ar, @@Av, @@Ax, @@Ay, @@AB, @@AC, >> @@AD, @@Ba, @@Bc, @@Bk, @@Cg, @@At, and @@Bn, none of which are available >> on an M12 (which would be the logical target if you're going to the trouble >> of an adapter), so would need to be converted to other commands, and the >> correct response returned. In addition, the response to the @@Bb command >> (Visible sat status) would need modification. >> >> >> _______________________________________________ >> 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. _______________________________________________ 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.
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