23
RELM/BK Radio
software must be used to enable OTAR and to mark the channel(s)
that will communicate with the Key Management Facility (KMF).
In addition, the radio must have key encryption keys (used only to
encrypt other keys) loaded with an APCO Project 25 compatible key
fill device such as the Motorola KVL 3000 Plus, using a BK Radio
keyloader cable.
Operation
The receiver can be programmed to automatically detect both clear
and secure signals.
The transmitter selects clear or secure operation based on each
channel’s programming. Digital channels can be programmed to
always transmit encrypted, always transmit clear, or to select the
encryption mode with the TX Secure switch.
The display indicates Secure Operation as follows:
Ch 1
KNG - P25
171.5850 0 MHz
LIGT T/A MENU LCK
TxD
In Standby Mode, if the radio will transmit in
Secure Mode when PTT is pressed, the
encrypt icon is displayed.
When receiving or transmitting an encrypted
signal, the encrypt icon flashes in the display.
Transmit Encryption Key Selection
The radio can hold up to 32 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. If a key
is selected from the pick list, it will be used during transmit on every
channel that allows selectable keys.
Follow the steps below to select the encryption key.
If programmed to a button:
Tx Keys
→Default
Key 1
ESC ▲ ▼ ENT
1. Press the button programmed for the Key
Pick List
(UKEY)
.
2. Use the up/down buttons to highlight the
desired key. Or, using the keypad, press the
number of the desired key. '
Default'
= Key
assigned to channel via programming.
3. Press the 'ENT' button to select the key.
4. Hold the 'ESC' button to return to normal
operation.
Summary of Contents for KNG
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