User's Manual
Table Of Contents
- Declaration of Conformity
- Important Safety Information
- Software Version
- Informations importantes sur la sécurité
- Version du logiciel
- Computer Software Copyrights
- Documentation Copyrights
- Disclaimer
- Getting Started
- Preparing Your Radio for Use
- Identifying Radio Controls
- Identifying Status Indicators
- General Radio Operation
- Advanced Features
- Advanced Call Features
- Contacts
- Scan Lists
- Scan
- Call Alert Paging
- Emergency Operation
- Man Down
- Automatic Registration Service (ARS)
- Text Messaging Service (TMS)
- Accessing the Messaging Features
- Composing and Sending a New Text Message
- Sending a Quick Text Message
- Using the Priority Status and Request Reply Features
- Appending a Priority Status to a Text Message
- Removing a Priority Status from a Text Message
- Appending a Request Reply to a Text Message
- Removing a Request Reply from a Text Message
- Appending a Priority Status and a Reply Request to a Text Message
- Removing a Priority Status and a Reply Request from a Text Message
- Managing Text Messages
- Managing Sent Text Messages
- ASTRO 25 Advanced Messaging Solution
- Secure Operations
- Security
- The Global Positioning System (GPS)
- Understanding the GPS Feature
- Enhancing GPS Performance
- The Outdoor Location Feature (Using GPS)
- Accessing the Outdoor Location Feature
- Saving a Waypoint
- Viewing a Saved Waypoint
- Editing the Alias of a Waypoint
- Editing the Coordinates of a Waypoint
- Deleting a Single Saved Waypoint
- Deleting All Saved Waypoints
- Measuring the Distance and Bearing from a Saved Waypoint
- Using the Location Feature While in Emergency Mode
- Trunking System Controls
- Mission Critical Wireless - Bluetooth® -
- Turning the Bluetooth On
- Turning the Bluetooth Off
- Re-Pair Timer
- Bluetooth Drop Timer
- Pairing Bluetooth Device with the Radio
- Indicating Bluetooth Connection is Lost
- Turning On the Bluetooth Audio (Routing the Audio from the Radio to the Headset)
- Turning Off the Bluetooth Audio (Routing the Audio from the Headset to the Radio)
- Adjusting the Volume of the Radio from Bluetooth Audio Device
- Viewing and Clearing the Bluetooth Device Information
- Editing the Bluetooth Friendly Name
- Programming Over Project 25 (POP 25) (ASTRO 25 and ASTRO Conventional)
- Utilities
- Viewing the Recent Calls
- Using the Flip Display
- Selecting a Basic Zone Bank
- Selecting an Enhanced Zone Bank
- Selecting the Power Level
- Selecting a Radio Profile
- Enabling and Disabling the Radio Alias
- Selecting the Audio Speaker
- Controlling the Display Backlight
- Locking and Unlocking the Keypad and Controls
- Turning Keypad Tones On or Off
- Turning Voice Mute On or Off
- Using the Time-Out Timer
- Setting the Time and Date
- Using the Conventional Squelch Operation Features
- Using the PL Defeat Feature
- Using the Digital PTT ID Feature
- Using the Smart PTT Feature (Conventional Only)
- IMPRES™ Battery Annunciator
- Accessing the General Radio Information
- Voice Announcement
- Accessories
- Appendix: Maritime Radio Use in the VHF Frequency Range
- Glossary
- Commercial Warranty
Advanced Features
English
99
The Global Positioning System (GPS)
This feature uses information from the Global Positioning
System (GPS) satellites orbiting the Earth to determine the
approximate geographical location of your radio, expressed as
latitude and longitude. 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.
Understanding the GPS Feature
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 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.
Note: Even where adequate signals from multiple satellites
are available, your GPS feature only provides an
approximate location, usually within 20 meters from
your actual location, but sometimes further away.
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: 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.
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