Procedure:
1
Attach the KVL to your radio.
The display shows
KEYLOAD
and all other radio functions, except for power down, backlight, and
volume, are locked out.
NOTE:
If the Multi-system Over-the-Air Rekeying feature is in use, the ASTRO profile name is
displayed below
KEYLOAD
.
2
Select the required keys and press
Load
on the KVL.
The KVL indicates that keyload is successful.
7.14.3.2
Multikey Feature
This feature allows the radio to be equipped with different encryption keys and supports the DES-OFB
algorithm.
There are two types of encryption keys:
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 both conventional and trunked applications are applied, strap the encryption keys for trunking
on a per-talkgroup, or announcement-group basis. Also, a different key can be strapped to other
features such as dynamic regrouping, failsoft, or emergency talkgroup. You can have operator-
selectable key erasure.
7.14.3.3
Erasing Encryption Keys
Procedure:
• 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
.
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.
MN006727A01-AE
Chapter 7 : Advanced Features
55