Motorola APX 8000XE User Manual page 64

Erasing the Selected Encryption Keys
This feature allows you to erase all or selected
encryption keys.
Erasing the single key in radios with the single-key
option and erasing all keys in radios with the
multikey option via 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 PLS WAIT. When all the
encryption keys have been erased, the display
shows ALL 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.
62
English
have operator-selectable key
erasure.
Requesting an Over-the-Air Rekey (ASTRO
Conventional Only)
Ensure that the 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.
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.
Press and hold the preprogrammed Rekey
Request button to send the rekey request.
If the rekey operation fails, a bad-key tone sounds
and the display shows RKY FAIL.
Note:
The rekey operation failure indicates that
your radio does not contain the Unique
Shadow Key (USK).
MDC Over-the-Air Rekeying (OTAR) Page
This feature allows you to view or define MDC Over-
the-Air Rekeying (OTAR) features. It is applied only