Motorola APX MOBILE O3 CONTROL HEAD User Manual page 97

•
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 The encryption keys can be tied
Multikey (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 If the radio is used for both
Multikey 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.
Selecting an Encryption Key
1
or to Key.
2 Press the Menu Select button directly below Key.
The display shows the last user-selected and
stored encryption key, and the available menu
selections.
93
English