Erasing The Selected Encryption Keys; Requesting An Over-The-Air Rekey (Astro Conventional Only) - Motorola APX Series User Manual

Conventional Multikey
The encryption keys are strapped on a one-per-channel
basis, through CPS. In addition, you can have operator-
selectable keys, operator-selectable keysets, and
operator-selectable key erasure. If talkgroups are
enabled in conventional, then the encryption keys are
strapped to the talkgroups.
Trunked Multikey
If the radio is used for both conventional and trunked
applications, strap the encryption keys for trunking on a
per-talkgroup or announcement-group basis. In
addition, a different key can be strapped to other
features, such as dynamic regrouping, failsoft, or
emergency talkgroup. You can have operator-selectable
key erasure.

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 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 PLS WAIT. When all the
encryption keys have been erased, the display
shows ALL ERASED.
NOTICE:
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.
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
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