Radio Inhibit; Global Positioning System/Global Navigation Satellite System; Gps Operation - Motorola APX 7000XE User Manual

2.18

Radio Inhibit

This feature allows the system administrator to put a radio into a non-functional state when the radio is
missing or in an unknown hand. The radio stays in this state regardless of its power changes.
NOTICE:
If the radio has Inter-system roaming capability, the system administrator is able to put the radio
into a non-functional state when missing radio roamed to another system.
The radio can only be uninhibited by receiving an uninhibited command from the system
administrator.
2.19

Global Positioning System/Global Navigation Satellite System

The Global Navigation Satellite System (GNSS) in the radio uses information from the Global
Positioning System (GPS) to determine the approximate geographical location of your radio.
NOTICE: This feature is addressed as GPS across the manual as the naming convention of the
buttons and strings remain the same as the legacy feature of GPS.
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.
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.
2.19.1

GPS Operation

The GPS technology uses radio signals from earth orbiting satellites to establish location coordinates.
Therefore, maximizing your view of 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 your radio will not work. Such situations
include but are not limited to:
• Underground locations
• Inside buildings, trains, or covered vehicles
• Under any 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.
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.
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Advanced Features
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