Using The Multikey Feature; Selecting An Encryption Key; Selecting A Keyset - Motorola ASTRO APX 7000 Series Quick Reference Card

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Secure-equipped radios – 6 to 8 characters.
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Using the Multikey Feature

This feature allows the radio to be equipped with as many as 48
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 radio service
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:
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1 to Key.
or
64
English
Press the Menu Select button directly below Key. The
2
display shows the last user-selected and stored encryption
key, and the available menu selections.
U D
3
or 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 the desired
menu selection.
OR
U D
or to scroll through the menu selections.
Choose Pset or Preset to select the preset or default
encryption key OR Sel to save the newly selected key and
returns to the home display.
H
5 , the PTT button, or the Abrt menu selection to
Press
exit.
OR
Turn the 16-Position Select knob to exit.
Note: If the selected key is erased, a momentary keyfail tone
sounds and the display shows Key fail.
OR
If the selected key is not allowed, a momentary illegal
key tone sounds and the display shows Illegal key.

Selecting a Keyset