7.14
Secure Operations
Secure radio operation provides the highest commercially available level of voice security on both
trunked and conventional channels.
By default, the radio automatically enters the encrypted environment without having to manually select
or clear the secure transmission.
7.14.1
Selecting Secure Transmissions
Procedure:
Turn the preprogrammed
Secure/Clear
switch to the secure position.
• If the selected channel is preprogrammed for clear-only operation, when you press the
PTT
button, you hear an invalid mode tone and the display shows
CLR TX
.
• The radio does not transmit until you set the
Secure/Clear
switch to the clear position.
• If the “Ignore
Secure/Clear
Switch when Strapped” programming option is enabled, the radio
transmits without displaying any messages in the strapped mode of operation, regardless of
the
Secure/Clear
switch setting. This option must be preprogrammed by a qualified radio
technician.
• The
Secure/Clear
switch only applies when the radio is transmitting.
7.14.2
Selecting Clear Transmissions
Procedure:
Turn the preprogrammed
Secure/Clear
switch to the clear position.
• If the selected channel is preprogrammed for secure-only operation, when you press the
PTT
button, you hear an invalid mode tone and the display shows
SEC TX
.
• The radio does not transmit until you set the
Secure/ Clear
switch to the secure position.
• You can request to configure the radio to ignore the clear voice or insecured transmission
when the radio is in secured transmission. Check with your agent for details.
• If the “Ignore
Secure/Clear
Switch when Strapped” programming option is enabled, the radio
transmits without displaying any messages in the strapped mode of operation, regardless of
the
Secure/Clear
switch setting. This option must be preprogrammed by a qualified radio
technician.
• The
Secure/Clear
switch only applies when the radio is transmitting.
7.14.3
Managing Encryption
This chapter explains the encryption feature on your radio.
7.14.3.1
Loading Encryption Keys
Prerequisites:
• Refer to the
Key Variable Loader (KVL) manual
for equipment connections and setup.
MN006727A01-AE
Chapter 7 : Advanced Features
54