Table of Contents
Advertisement
●
Erasing the single key in radios with the single-key option and erasing all keys in radios with the
multikey option by using the preprogrammed Top Side (Select) button and Top (Orange) button:
a. Press and hold the Top Side (Select) button.
b. While holding Top Side (Select) button down, press the Top (Orange) button.
The display shows Please wait. When all the encryption keys have been erased, the display
shows All keys erased.
NOTE: Do not press the Top (Orange) button before pressing the Top Side (Select) button,
unless you are in an emergency situation as this sends an emergency alarm.
7.16.3.6
Requesting an Over-the-Air Rekey
Prerequisites: Ensure that the Unique Key Encryption Key (UKEK) or Unique Shadow Key (USK) is 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.
Procedure:
1.
or
to Reky.
2. Press the Menu Select button directly below Reky.
3. Perform one of the following actions:
●
Press the PTT button to send the rekey request.
●
Press the PTT button again, or the
normal mode.
If the rekey operation fails, you hear a bad-key tone and the display shows Rekey fail.
NOTE: The rekey operation failure indicates that your radio does not contain the UKEK or USK.
7.16.3.7
MDC OTAR (Conventional Only)
This feature allows you to view or define the Motorola Data Communications (MDC) Over-the-Air Rekeying
(OTAR) features. This feature is applied only when operating in secure encrypted mode. In addition to Rekey
Requests, OTAR transmissions include Delayed Acknowledgments, and Power-up Acknowledgments.
Some of the selected options require configuration at the Key Management Controller (KMC) site to work
properly.
NOTE: This feature must be programmed by a qualified radio technician. For more information, contact
your system administrator.
7.16.3.8
Infinite UKEK Retention
This feature enables Unique Key Encryption Key (UKEK) to be permanently stored in the radio even when all
the encryption keys are erased. Without this UKEK key, the radio cannot be rekeyed over the air. The Infinite
UKEK Retention settings can be different for each secure profile.
NOTE: This feature must be programmed by a qualified radio technician. For more information, contact
your system administrator.
or Emergency button, to exit the feature and transmit in
MN001824A01-AT
Chapter 7: Advanced Features
93
Advertisement
Table of Contents
