Gps Operation - Motorola APX 7000 User Manual

to determine the approximate geographical location of
your radio, expressed as latitude and longitude or
MGRS format per request from customers. The
availability and accuracy of this location information
(and the amount of time that it takes to calculate it)
varies depending on the environment in which you
are using the GPS feature.
For example, GPS location fixes are very difficult to
obtain indoors, in covered locations, between high
buildings, or in situations where you have not
established a clear broad view of the sky.
Once GPS is enabled, the radio displays the GPS
icon on the screen. The dispatcher can always
request the system to determine the real-time location
coordinates of the radio.

GPS Operation

The GPS technology uses radio signals from earth
orbiting satellites, to establish the location
coordinates, maximizing your view of clear
unobstructed sky is essential for optimum
performance.
Where adequate signals from multiple satellites are
not available (usually because you cannot establish a
view of a wide area of the sky), the GPS feature of
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your radio will not work. Such situations include but
are not limited to:
• Underground locations
• Inside of buildings, trains, or other covered
vehicles
• Under any other metal or concrete roof or
structure
• Between tall buildings or under dense tree-cover
• In temperature extremes outside the operating
limits of your radio
Even where location information can be calculated in
such situations, it may take longer to do so, and your
location estimate may not be as accurate. Therefore,
in any emergency situation, always report your
location to your dispatcher.
Keep in mind that the accuracy of the location
information and the time it takes to obtain it varies
depending upon circumstances, particularly the ability
to receive signals from an adequate number of
satellites.
Note: Even where adequate signals from multiple
satellites are available, your GPS feature only
provides an approximate location, usually within 20