User's Manual
Table Of Contents
- Declaration of Conformity
- Important Safety Information
- Software Version
- 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
- Multiple Control Head 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
General Radio Operation
English
27
Selecting a Radio Channel
A channel is a group of radio characteristics, such as transmit/
receive frequency pairs.
Use the following procedure to select a channel.
Note: Your radio must be preprogrammed to allow you to use
this feature. If you select a channel that is not within
the preprogrammed band, the radio indicates that it is
on an unsupported frequency with both audio and
visual warnings.
Consult a qualified radio technician for the right choice
between the following methods.
Procedure:
Rotate the Mode knob until the display shows the desired
channel.
OR
1 Press and hold > to scroll to CHAN and press the Menu
Select button directly below CHAN. The display shows the
current zone and channel.
2 Rotate the Mode knob to the desired channel.
3 Press H or the PTT button to confirm the channel.
Press the PTT button to transmit on the displayed zone
channel.
Receiving and Responding to a Radio Call
Once you have selected the required channel and/or zone, you
can proceed to receive and respond to calls.
You see solid red while the radio is transmitting, and solid
yellow when the radio is receiving a transmission (conventional
mode only). There is no LED indication when the radio receives
a transmission in trunking mode.
If the radio is receiving a secure transmission, the LED blinks
yellow.
Red LED
Yellow LED
Green LED
O5Head_6875947M01_C.book Page 27 Wednesday, October 20, 2010 12:13 PM