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GPS SETUP
The GPS Setup menu has sub-menus that affect
the GPS receiver. From these menus you can set
the update rate, initialize the GPS receiver, do a
self-test on the receiver, and do a cold-start. (Note:
The “Initialize GPS receiver” is covered in the
“Finding Your Position” section in the front of this
manual.
To view these menu items, press the MENU key,
then highlight the “GPS Setup” menu. Press the
right arrow key. The screen at right appears.
GPS Cold Start
When the GlobalNav 200 is turned on for the first time “out of the box”, it
automatically sends a “cold-start” message to the GPS receiver. You can
also send a cold start message to the receiver at any time.
If the unit can’t lock on to the satellites using the data you’ve given it, or if
it has trouble finding the satellites, perhaps it is using the wrong data. This
can happen if you’ve entered the wrong data by accident when initializing
the receiver. For example, if you entered east longitude instead of west.
Or if you’ve moved a long distance with the unit turned off.
To send a cold start message to the receiver, highlight the “GPS Cold
Start” label, then press the right arrow key. A message appears, asking
you if you really want to do a cold start. Follow the instructions on this
message page.
The unit will begin searching for the satellites. It can take as long as 5
minutes for it to lock on to the necessary satellites. Remember, when it
does, your local time and possibly date can be wrong. Use the method
shown in the initialization section at the front of this manual to change
them, if needed. Once this is done, an internal clock will keep the correct
time, even when the unit is turned off. The GPS system updates this clock
when the unit is locked on to the satellites.