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15
Starting your RoadMentor by Cold Start
To switch your RoadMentor on, press the power button at the bottom of the keypad
once it has been connected to an external power source.
Please place your RoadMentor in a place where it has a clear and unobstructed
view of the sky. If you have not used your RoadMentor for some time, or has moved
it over 500 miles after the last power off, you should
Cold Start
to get a GPS fix.
Cold start
takes effect simply by pressing “
—
“ keypad continuingly for 10 seconds
immediately after turning on the RoadMentor. You will see a message “Cold Start
OK” at the bottom of the warning screen on power up.
Once you have a valid GPS fix, subsequent GPS fix times after switching the power
on; known as Time-To-First-Fix (TTFF) will be lower. Below are the typical times to
get a GPS fix:
PRM-1000 PRM-1000S
Cold Start
(Using your RoadMentor for the first time/Moving the unit over 500
miles from the last location/Switched for prolonged periods of time)
45
seconds
42 seconds
Warm Start
(Switching the unit off for a time within 1 week)
35
seconds
38 seconds
Hot Start
(Temporary loss of GPS fix/Immediate power off-power on, within 4
hours)
2 seconds
1 seconds
* PROM-1000 uses Sony GA-4 GPS chip; PRM-1000S uses SiRF Star III GPS chip.
Once you have turned your RoadMentor on, you will be presented with a warning
message. After reading the warning message, press OK and you will enter the Map
Screen. You are now ready to navigate using your RoadMentor.