User Manual

Accessing the Secure Feature
1
or to SEC.
2 Press and hold the Menu Select button directly
below SEC to display Secure feature screen.
The display shows the Secure screen.
Managing Encryption
Loading the Encryption Key(s)
Note:
Refer to the key-variable loader (KVL) manual
for equipment connections and setup.
1
Attach the KVL to your radio.
The display shows KEYLOADING, and all other
radio functions are locked out, except for power
down, and volume.
2 Press the Menu Select button below TARGET.
3 Press the Menu Select button below LOAD.
4
Perform one of the following actions:
•
Press the Menu Select button below KEY for
single-key.
•
Press the Menu Select button below GROUP for
multikey.
5
or to the required key or group.
6 Press the Menu Select button below LOAD to load
the key to your radio.
When the key has been loaded successfully, one of
the following scenarios occurs:
• You hear a short tone for single-key radios.
• You hear an alternating tone for multikey radios.
Multikey Feature
This feature allows the radio to be equipped with
different encryption keys and supports the DES-OFB
algorithm.
There are two types:
Conventional
Multikey
The encryption keys can be tied
(strapped), on a one-per-channel
basis, through Customer
Programming Software. In addition,
you can have operator-selectable
keys, operator-selectable keysets,
and operator-selectable key
Advanced Features
96
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