Motorola ASTRO APX 7000, Руководство пользователя

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Advanced Features
English
97
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:
•
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.
Selecting an Encryption Key
Procedure:
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.
3
U
or
D
to scroll through the encryption keys.
OR
Use the keypad to enter the number of the desired key.
4
Press the Menu Select button directly below
Sel
to save the
newly selected key and return to the Home screen.
OR
Press
H
, the PTT button, or the Menu Select button directly
below
Exit
to exit.
OR
Turn the 16-Position Select knob to exit.
Note: When the selected key is erased, you hear a
momentary keyfail tone and the display shows
Key
fail
.
OR
When the selected key is not allowed, you hear a
momentary illegal key tone and the display shows
Illegal key
.