23
SCRAMBLER (FM)/ ENCRYPTION (APCO)
Note:
◆ The Scrambler function can be used only in Conventional FM Operation. Additionally, the Voice
Scrambler board must be installed before this function can be activated.
◆ Ask your dealer for details concerning the Voice Scrambler board and the Encryption DES/AES
settings.
SECURE (ENCRYPTED) TRANSMISSION
Press the key programmed as Scrambler/ Encryption to switch the transceiver
to secure (encrypted) transmission.
• The (KCH-14) or
OPT
(KCH-15) icon appears on the display.
• Pressing the microphone PTT switch after the Scrambler or Encryption function has
been turned ON encrypts the transmitted signal.
• Each group member must activate their respective Scrambler/ Encryption functions to
descramble the received signals.
SELECTING THE SCRAMBLER CODE (FM)
1 Press the key programmed as Scrambler/ Encryption Code or press and
hold the key programmed as Scrambler/ Encryption for 1 second, to enter
Code Selection mode.
2 Press the GRP and keys or rotate the CH control to increase or
decrease the Scrambler code.
• There are 16 available Scrambler codes (1 ~ 16).
• Each group member must use the same code in order for the transceivers to
descramble the received signals.
3 Press the PF 1, PF 2, or PF 3 key (the first, second, or third key from the left,
after the CH control) to exit Code Selection mode.
SELECTING THE ENCRYPTION KEY (APCO)
1 Press the key programmed as Scrambler/ Encryption Code or press and
hold the key programmed as Scrambler/ Encryption for 1 second, to enter
Key Selection mode.
2 Press the GRP and keys or rotate the CH control to select the new
Encryption key.
• There are 16 available Encryption keys (1 ~ 16).
• Each group member must select a code that is in each member’s key list in order
for the transceivers to descramble the received signals.
3 Press the PF 1, PF 2, or PF 3 key (the first, second, or third key from the left,
after the CH control) to exit Key Selection mode.
Note: To return the transceiver to the default programmed Encryption key, select “PRESET”.
However, if you delete the Encryption key {page 24}, it will not be recovered.
