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3 Press the Menu Select button directly below Sel to save the newly selected keyset.

The radio exits keyset selection and returns to the Home screen.

NOTE: Press , the PTT button, or the Exit menu selection to exit this menu at any

time without changing the keyset selection.

6.16.3.5

Erasing Encryption Keys

Do one of the following to erase the selected encryption keys. You can use the options interchangeably

depending on your preference and the programmed functions.

If the Multi-system Over-the-Air Rekeying feature is in use, the keys erased are only for the current

secure profile of the selected channel. The erase all option operates as configured by the dealer or

system administrator. Erasing all keys using the Top (Orange) button and the Top Side (Select) button

erases all keys in all keylists in the radio.

Procedure:

• Erasing the selected encryption keys using the radio menu:

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.

or to the desired encryption key or use the keypad to enter the number of the desired

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.

f. Press the Menu Select button directly below All to delete all keys, or press the Menu

Select button directly below Sngl to delete the current shown key.

You can abort this screen and return to the Home screen by pressing the Menu Select

button directly below Abrt.

6.16.3.6

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:

or to Reky.

2 Press the Menu Select button directly below Reky.

MN006147A01-AE

Chapter 6: Advanced Features

Motorola APX E5 User Manual

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