Gps Performance Enhancement; The Outdoor Location Feature (Using Gps) - Motorola APX 7000 User Manual

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Advanced Features
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.
NOTICE: Even where adequate signals from multiple satellites are available, your GPS feature
only provides an approximate location, usually within 10 meters from your actual location, but
sometimes farther away.
The satellites used by the GPS feature are controlled by the U.S. government and are subject to
changes implemented in accordance with the Department of Defense GPS user policy and the Federal
Radio Navigation Plan. These changes may affect the performance of the GPS feature on your radio.
2.19.2

GPS Performance Enhancement

Sometimes, the GPS feature may be unable to complete a location calculation successfully. You then
see a message indicating that your radio cannot connect to enough visible satellites.
To maximize the ability of your radio to determine a fix, take note of the following guidelines:
• For your initial fix, hold the radio in the face position.
• Stay in the open. The GPS feature works best where there is nothing between your radio and the
open sky.
2.19.3

The Outdoor Location Feature (Using GPS)

This feature allows you to determine your current location using a location menu, as well as your
current distance and bearing in relation to another location. Radio location may be requested and
reported over-the-air.
Your radio stores up to a maximum of 60 programmable location coordinates, also known as
waypoints. When the memory is full, the next waypoints automatically replaces the oldest waypoints in
the radio.
The radio also stores four preprogrammed waypoints. These coordinates cannot be deleted.
The following table shows the differences between programmable waypoints and preprogrammed
waypoints.
Programmable Waypoints
User-configurable location coordinates.
Only the alias is editable, not the coordinates.
Coordinates can be deleted one at a time, or all
at once.
116
Preprogrammed Waypoints
Fixed location coordinates:
• Home
• Emergency
• Last Known Location
• Destination
The Home and Destination coordinates are ed-
itable.
Coordinates cannot be deleted.