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
- Automatic Registration Service (ARS)
- Text Messaging Service (TMS)
- Secure Operations
- Managing Encryption
- Loading a Single Encryption Key
- Loading the Group Encryption Keys
- Using the Multikey Feature
- Selecting an Encryption Key (Conventional Only)
- Enabling Secure Transmission
- Accessing the Secure Feature
- Selecting a Keyset
- Erasing the Selected Encryption Keys
- Requesting an Over-the-Air Rekey
- MDC Over-the-Air Rekeying (OTAR) Page
- Hear Clear
- Managing Encryption
- 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
- Ignition Switch Options
- Utilities
- Viewing Recent Calls List
- Selecting the Power Level
- Selecting a Radio Profile
- Controlling the Display Backlight
- Turning Keypad Tones On or Off
- Turning Voice Mute On or Off
- Using the Time-Out Timer
- Using the Conventional Squelch Operation Features
- Using the PL Defeat Feature
- Using the Digital PTT ID Feature
- Using the Smart PTT Feature (Conventional Only)
- Accessing General Radio Information
- Using Optional External Alarms (Horn and Lights)
- Using the Voice Announcement
- Helpful Tips
- Accessories
- Appendix: Maritime Radio Use in the VHF Frequency Range
- Glossary
- Commercial Warranty and Service
Advanced Features
English
97
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:
Accessing General Radio Information
Your radio contains information on the following:
• Radio Information
• IP Display
• Control Assignments
Note: If the feature inactivity timer is enabled, your radio
automatically exits the feature when your radio is left
idle long enough for the time to expire. You will hear
the Menu Inactive Exit Tone upon feature exit.
Accessing Radio Information
This feature displays the following information of your radio: :
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.
•
Host Version • DSP Version
• Secure Version • KG (Secure Algorithm)
• CH 1 – 4 Version
(depending on the
number of channels
connected.)
• Serial Number
• MCHIB Version
• CHIB Version
• AUX CH Version
• TIB Version • Siren Version
• TRC Version • VRS Version
• URC Version • DVRS App Version (only when
DVRS is available)
O3Head_6875946m01.book Page 97 Tuesday, November 1, 2011 12:00 PM