Select An Encryption Index - Motorola Astro XTS 4000 Service Manual

7-2
3. Press Left Navigation Button or Right Navigation Button to scroll through the list of
encryption keys.
NOTE: If you select an erased key, the display alternates between showing the encryption
4. Press Left Menu Select Button, Middle Menu Select Button, or Right Menu Select
Button directly below the desired menu.
• PSET = selects the preset or default encryption key.
• SEL = saves the newly selected key and returns to the home display.
5. Press Home Button, the PTT Button, or Left Menu Select Button, Middle Menu Select
Button, or Right Menu Select Button directly below the ABRT menu to exit this menu.
• If the selected key is erased, the display shows "KEY FAIL" and the radio sounds a
momentary keyfail tone.
• If the selected key is not allowed, the display shows "ILLEGAL KEY" and the radio sounds a
momentary illegal key tone.
7.3.2 Use the Keypad
To select an encryption key using the keypad:
1. Press Right Navigation Button until the display shows "KEY."
2. Press Left Menu Select Button, Middle Menu Select Button, or Right Menu Select
Button directly below "KEY." The display shows the last user-selected and
-stored encryption key, as well as the available menu selections.
3. Using the keypad, enter the number of the desired key.
NOTE: If you select an erased key, the display alternates between showing the encryption
4. Press Left Navigation Button or Right Navigation Button to select from the menu.
• PSET = selects the preset or default encryption key.
• SEL = saves the newly selected key and returns to the home display.
5. Press h, the PTT Button, or Left Menu Select Button, Middle Menu Select Button, or
Right Menu Select Button directly below the ABRT menu.
• If the selected key is erased, the display shows "KEY FAIL" and the radio sounds a
momentary keyfail tone.
• If the selected key is not allowed, the display shows "ILLEGAL KEY" and the radio sounds a
momentary illegal key tone.
7.4

Select an Encryption Index

This feature lets the user select one or more groups of several encryption keys from among the
available keys stored in the radio. For example, the radio could have a group of three keys structured
to one index, and another group of three different keys structured to another index. Changing indices
makes the radio automatically switch from one set of keys to the other. Every channel to which one
of the original keys was tied will now have the equivalent new key instead.
key and "ERASED KEY."
key and "ERASED KEY."
Encryption: Select an Encryption Index