Advanced Features
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77
7 When the key has been loaded successfully, the radio
sounds a short tone for single-key radios.
Loading the Group Encryption Keys
Procedure:
1 Attach the KVL to your radio.
2 Press the Menu Select button below TARGET.
3 Press the Menu Select button below LOAD.
4 Press the Menu Select button below GROUP.
5 > or < to required group.
6 Press the Menu Select button below LOAD to load the key
to your radio.
7 Your mobile radio display shows KEYLOADING when it is
loading key(s) from KVL.
8 When the key has been loaded successfully, the radio
sounds an alternating tone for multikey radios.
Using the 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 multikey:
• 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 erasure. If talkgroups are enabled in
conventional, then the encryption keys are strapped to the
talkgroups.
• Trunked Multikey – If you use your radio for both
conventional and trunked applications, you have to strap your
encryption keys for trunking on a per-talkgroup or
announcement-group basis. In addition, you may strap a
different key to other features, such as dynamic regrouping,
failsoft, or emergency talkgroup. You can have operator-
selectable key erasure.
O5Head_6875947m01.book Page 77 Tuesday, November 1, 2011 12:06 PM
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