User's Guide
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
- Automatic Registration Service (ARS)
- Text Messaging Service (TMS)
- Accessing the TMS 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
- Security
- Radio Stun and Kill
- The Global Positioning System (GPS)
- Understanding the GPS Feature
- Enhancing GPS Performance
- The Outdoor Location Feature (Using GPS)
- Enabling MGRS Coordinates
- 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
- Programming Over Project 25 (POP 25) (ASTRO 25 and ASTRO Conventional)
- Voice Announcement
- Using Site Selectable Alerts (ASTRO 25)
- Sending SSA Notification to Single Site
- Sending SSA Notification to Single Site Via Manual Entry
- Sending SSA Notification to All Sites
- Sending SSA Notification to All Available Sites
- Stopping SSA Notification of a Single Site
- Stopping SSA Notification of a Single Site Via Manual Entry
- Stopping SSA Notification of All Sites
- Stopping SSA Notification of All Available Sites
- Utilities
- Viewing the Recent Calls
- Selecting the Power Level
- Selecting a Radio Profile
- Enabling and Disabling the Radio Alias
- Selecting the Audio Speaker
- Controlling the Display Backlight
- Setting Up the Radio Display and Visual Indicators to Suite Night Vision Goggles
- 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
- Helpful Tips
- Accessories
- Appendix: Maritime Radio Use in the VHF Frequency Range
- Glossary
- Commercial Warranty
Advanced Features
English
120
Using the Smart PTT Feature (Conventional Only)
Smart PTT is a per-personality, programmable feature used in
conventional radio systems to keep radio users from talking
over other radio conversations.
When smart PTT is enabled in your radio, you cannot transmit
on an active channel.
If you try to transmit on an active smart-PTT channel, you hear
an alert tone, and the transmission is inhibited. The LED lights
up solid yellow to indicate that the channel is busy.
Three variations of smart PTT are available:
Mode Description
Transmit Inhibit
on Busy Channel
with Carrier
You cannot transmit if any traffic is
detected on the channel.
Transmit Inhibit
on Busy Channel
with Wrong
Squelch Code
You cannot transmit on an active
channel with a squelch code or
(if secure-equipped) encryption key
other than your own. If the PL code is
the same as yours, the transmission is
not prevented.
Quick-Key
Override
This feature can work in conjunction
with either of the two above variations.
You can override the transmit-inhibit
state by quick-keying the radio. In other
words, two PTT button presses within
the preprogrammed time limit.
APX_4000_M3.book Page 120 Thursday, March 13, 2014 10:59 AM