[time-nuts] how to set up a Jupiter-T?

John Beale beale at bealecorner.com
Sat Apr 9 15:00:09 UTC 2011


Hi time folks,

I recently got a used Navman TU60 Jupiter-T GPS module from the far east. 
 From the label I gather it is a Lucent OEM version (TU60-D001-001). Is 
anyone else working with this model?

On startup it emits "ff 81 9c 04 01 00 00 00 64 79 00 00 00 00" at 9600 
bps, and I have been able to talk to it using Motorola WinOncore12, which 
reports under "Receiver ID":

COPYRIGHT 1995-2004 NAVMAN LTD.
SFTW P/N # 0000
SOFTWARE VER # 93
SOFTWARE REV # 07
SOFTWARE DATE 01/16/2004
MODEL # R01
HDWR P/N # TU60-D125
SERIAL # 703127719
MANUFACTUR DATE 701//52030
OPTIONS LIST 5843

What I cannot do is set the initial position. The setup command from 
WinOncore doesn't seem to be accepted. It seems stuck at:
Date: 8/10/2008 Time:7:24:31 GPS Lat: N 28 39.1906 Lon: E 121 14.7115
(Huangyan, south of Hangzhou CH)

...so needless to say it isn't seeing any satellites from Northern CA. 
Actually I can change the latitude to near mine (37 N) but cannot change 
the longitude from E to W. Horrible thought, is it possible the firmware 
has been locked to a specific geographic region ?

I have read the Motorola Binary format is not fully supported on this unit. 
I tried the tool intended for Jupiter models, WinLabMon v1.18  and it runs, 
  but it will not access the serial port on my WinXP box. I presume it is a 
problem with protected access mode to serial port HW, I gather it was 
designed for Win95.  Any suggestions or pointers appreciated!

thanks,
John Beale




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