Global Positioning System (Gps); Gps Operation - Motorola APX 4000 User Manual

• Press the Menu Select button directly below
Send to initiate command.
If the receiving radio received the command, your
radio display shows Ack received.
If the receiving radio does not have encryption key
to decrypt the received encrypted command, your
radio display shows Decrypt failed.
If the receiving radio is powered off or already
killed, your radio display shows No
Acknowledgement.
Once the receiving radio received the command, its
screen turns blank, the killed radio is inoperable.
Using Direct Kill to Kill Your Own Radio
Direct Kill allows you to make your own radio
inoperable.
Press and hold the Top Side button then press
the Orange button until the display turns blank
and becomes inoperable.

Global Positioning System (GPS)

This feature uses information from the Global
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Positioning System (GPS) satellites orbiting the Earth
English
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