BK Radio KNG Series, Service Manual, Page: 36 / 248

BK Radio Page 2-21
operation and Programming
transmit enCrYPtion KeY seleCtion [KeY]
The radio can hold up to 64 DES or AES encryption keys. Each channel is assigned a default key
for transmit. The key can be locked to the channel, or if programming allows, a transmit key other
than the default key can be selected from the radio’s Key Pick List.
To change an encryption key, open the KEY menu. Programmed key labels will be displayed.
Select the desired key and press “ENTER”.
To return the key to the pre-programmed value select “Default”.
If a key is selected that has not been programmed, the radio will emit a three beep tone and display
“Key Fail” before going to standby mode. The radio will not transmit but will beep and display “Key
Fail” when PTT is pressed.
User seleCtaBle enCrYPtion KeYset [KeYst]
OTAR equipped radios only.
Selecting a keyset from the Pick List will cause the radio to use encryption keys from the selected
keyset.
User selectable menu access can be assigned to a button or menu list item.
To change the encryption keyset, open the KEYST menu. Programmed Keyset labels will be
displayed.
Select the desired keyset and press “ENTER”.
reKeY reqUest [rKeY]
OTAR equipped radios only.
On radios equipped with over-the-air rekeying (OTAR), a radio user can manually request an
encryption rekey from the Key Management Facility (KMF).
For a radio to receive encryption keys or keysets over-the-air, the selected channel must
be designated as an OTAR channel via PC programming. Refer to your PC programming
documentation for more information.
To request a re-key:
Open the Rekey Request menu.
Press the “YES” button to Request Keys, or press “ESC” to cancel the operation.
If the “YES” button is pressed while on a channel that has not been marked as an OTAR channel,
the radio will beep and “NON-OTAR” will appear on the display.
If a successful rekey occurs, a tone will sound, and the display will momentarily show “REKEYED”.
KeYset ViewinG anD seleCtinG [Kset]
OTAR equipped radios only.
The radio can hold up to 8 encryption keysets. Each keyset is limited to a maximum of 64 keys. Only
one keyset can be active at any time. The radio will receive messages encrypted with any of the
keys in any of the keysets, but transmit keys can only be selected from the active keyset.
To change an encryption keyset, open the KEYST menu. Programmed keyset labels will be
displayed. Select the desired keyset and press “ENTER”.
ZeroiZinG [Zero]
The radio provides a method for the user to “panic-zeroize” all encryption keys. Zeroizing removes
all encryption keys from the radio, including keys used for OTAR and Tactical OTAR operation.
Zeroize can be assigned as a button or menu list item.
Open the “Zeroize Keys” menu.
Press “YES” to erase all encryption keys or “ESC” to cancel the action.
When successfully removed the “Keys Removed” message will momentarily be displayed.