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 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.
If 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.
6.17.1
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.
6.17.2
The Outdoor Location Feature (Using GPS)
This feature allows you to determine your current location using a location menu, and 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 waypoint 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
Preprogrammed Waypoints
User-configurable location coordinates.
Fixed location coordinates:
• Home
• Emergency
• Last Known Location
• Destination
6.17.3
Location Format
This feature allows you to select different display formats of GPS location.
The following GPS location formats are available:
• Lat/Long(DD)
• Lat/Long(DDM)
• Lat/Long(DMS)
• UTM/UCS
• SLD99
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Chapter 6: Advanced Features
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