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
Advanced Features
English
77
Requesting an Over-the-Air Rekey
This feature, also known as OTAR, allows the dispatcher to
reprogram the encryption keys in the radio remotely. The
dispatcher performs the rekey operation upon receiving a rekey
request from the user.
Procedure:
1 > or < to REKY.
2 Press the Menu Select button directly below REKY.
3 Press the PTT button to send the rekey request.
OR
Press the PTT button again, or the H or Emergency button,
to exit the feature and transmit in normal mode.
4 If the rekey operation fails, a bad-key tone sounds and the
display shows REKEY FAIL.
Note: The rekey operation failure indicates that your radio
does not contain the Unique Shadow Key (USK). This
key must be loaded into the radio with the key-variable
loader (KVL) before the rekey request can be sent.
Refer to your local key management supervisor for
more information.
MDC Over-the-Air Rekeying (OTAR) Page
This feature allows to view or define MDC Over-the-Air
Rekeying (OTAR) features.It is applied only when operating in
secure encrypted mode and only for conventional
communications. In additional to Rekey Requests, OTAR
transmissions include Delayed Acknowledgements, and Power-
up Acknowledgements.
Some of the options selected may also need to be set up at the
Key Management Controller (KMC) site to work properly.
Note: This feature must be preprogrammed by a qualified
radio technician. Check with your dealer or system
administrator for more information.
O5Head_6875947M01_C.book Page 77 Wednesday, October 20, 2010 12:13 PM