6881094C28-D July 16, 2004
Encryption: Erase an Encryption Key 7-3
b. To exit this menu without changing the index selection, press h or the PTT button, or turn
the 16-Position Select knob.
7.4.2 Use the Keypad
To select an index using the keypad:
1. Press U until the display shows “INDX.”
2. Press D, E, or F directly below “INDX.” The display shows the last user-selected and
-stored index, as well as the available index menu selections.
3. Using the keypad, enter the number of the desired index.
4. Choose one of the following:
a. To save the index, press D, E, or F directly below “SEL.”
b. To exit this menu without changing the index selection, press h or the PTT button, or turn
the 16-Position Select knob.
7.5 Erase an Encryption Key
This section describes two methods for erasing an encryption key.
7.5.1 Method 1—Key Zeroization (Multikey Only)
To zeroize an encryption key:
1. Press U until the display shows “ERAS.”
2. Press D, E, or F directly below “ERAS.” The display shows the last user-selected and
-stored encryption key, as well as the available menu selections that are listed in Table 7-1.
3. Choose one of the following:
• If you want to erase all the encryption keys at once, go to step 4 below.
• If you want to erase a single encryption key, do one of the following:
– Press V or U to find the desired key. The display shows the selected key and the
available menu selections shown in Table 7-1.
– Using the keypad, enter the location number of the desired key. The display shows the
selected key, as well as the available menu selections shown in Table 7-1.
NOTE: To exit this menu at any time without erasing the key selection, press h or the PTT
button, or turn the 16-Position Select knob.
4. Press D, E, or F directly below the desired menu selection.
5. Press h, the PTT button, or turn the 16-Position Select knob to exit this menu.
Table 7-1. Encryption Key Zeroization Options
Menu
Selection
Action
ALL Erases all the encryption keys in the radio. The display
shows “ERS ALL KEYS” and “YES” and “NO.”
SNGL Selects the displayed encryption key to be erased.The
display shows “ERS SNGL KEY” and “YES” and “NO.”
ABRT Exits this menu and returns to the home display