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6.3
System / General
6.3.1 Battery type
Set the battery type and check the remaining battery capacity. (Note: For maximum battery
life, make sure this setting is accurate. See "Device description" for more information about
batteries.)
6.3.2 GPS Info
Indicates GPS signal quality by color.
Red: GPS signal is not sufficiently strong to allow positioning. Signals are being received
from fewer than 3 satellites.
Yellow: GPS signal is sufficiently strong to allow positioning. Signals are being received
from 3 satellites.
Green: A high-quality GPS signal is being received that allows your elevation to be
determined. Signals are being received from at least 4 satellites.
Also indicates number of satellites, current latitude/longitude, height, and speed.
6.3.3
Brightness
Adjust the screen brightness. (Note: Keep low to save battery.) You can also select whether
the screen should automatically dim when the battery is weak in order to save power.
6.3.4 Volume
Adjust the volume, or turn the sound on or off. Tap
to adjust volume separately for the
speaker and keytones. (Note: Volume is automatically reduced when battery is low.)
6.3.5 Calibrate compass
To guarantee precise orientation of the compass, you should recalibrate the compass at
regular intervals. Tap "Calibrate compass" and follow the instructions on the device. Visit the
support section of Rand McNally website to see a short video. (Note: Conduct compass
calibration outdoors. Make sure that no metallic objects are located in the vicinity of the
device and that no magnetic or electromagnetic sources of disturbance (e.g. high-voltage
power lines, antennae) are present.)
6.3.6 Calibrate barometer
For the most accurate height measurements, calibrate the
barometer at regular intervals.
There are three methods of calibration. Select one and tap "Next."
Automatic: Calibrate the barometer every 15 minutes.
Manual by specifying height: If you know the height of your
current position, enter this and place the device down to rest on a
flat surface for a short time.
Standard atmospheric pressure: Use the standard atmospheric
pressure at sea level to determine the height.
(Note: The barometer should be calibrated after each change of
battery, and after changes in elevation or weather.)
TM
19
Rand McNally Foris
User Manual
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