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MN004476A01-AN
Chapter 7: Advanced Features
a.
or to Eras and press the Menu Select button directly below Eras.
The display shows the last user-selected and stored encryption key, and the available menu
selections.
b.
or
to the desired encryption key.
c. Press the Menu Select button directly below Optn .
The display shows the available key erase options.
d.
or
to the required option and press the Menu Select button directly below Sel .
e. Select Erase all keys? or Erase single key? by pressing the Menu Select button below
Yes to erase the encryption key(s) in the radio.
You can return to the previous screen by pressing the Menu Select button below No.
●
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.
7.18.3.6
Requesting an Over-the-Air Rekey
If the Multi-system Over-the-Air Rekeying feature is in use, the rekey request is only for the current selected
secure profile.
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.
92
or Emergency button, to exit the feature and transmit in
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