June 2006 - The Omnistar corrections are no longer available
on the OPTUS satellite but only from the OCSAT satellite. This satellite
broadcasts on 1535.185 MHz.
Axis3 receivers should be returned to us for a firmware update (ver 4.8) before the new
satellite frequency can get activated.
To set your Axis3 to the new frequency, using the IMap software, use the following procedure:
a. Start Imap on your data collector and open a job
b. Ensure that you are receiving a GPS position indicated at the bottom of the screen
c. Select TOOLS > GPS Configure > COM View
d. In the bar at the top of the screen type the following:
e. $JFREQ,1535185,1200 Then press the send button. Empty the bar (or go out and back into COM view) then type,
f. $JSAVE and press the Send button (to save the new setting)
g. Close the menu by pressing the (x) button in the top right corner.
h. Turn the Axis3 unit off, wait ten seconds, turn the Axis3 unit back on.
i. in the Tools/ GPSconfigure/ DGPS/ Omnistar menu you can now see the new satellite being tracked (SS should be around 100, Errors 0)
The current Omnistar satellite covering Australia, the OCSAT, works on 1535185 MHz. Version 3.5 of Imap doesn’t use this frequency in its allocation for Australia.
Until a new version of Imap supports the correct frequency, you can use the following manual method:
In the TOOLS/ GPS configure menu, press the COM VIEW button
In the top window enter the command:
assignlband omnistar 1535185 1200
then tap on the SEND button - this assigns L band frequency to the correct satellite
note: leave the command sitting in the top window, so next time you only need to tap the ‘send’ button.