Advanced Features
English
48
Secure Operations
Secure radio operation provides the highest commercially
available level of voice security on both trunked and
conventional channels.
Unlike other forms of security, Motorola digital encryption
provides signaling that makes it virtually impossible for others to
decode any part of an encrypted message.
Selecting Secure Transmissions†‡
Procedure:
Press the preprogrammed Secure/Clear button to toggle to
clear mode.
Note: If the selected channel is preprogrammed for clear-only
operation – when you press the PTT button, an invalid
mode tone sounds and the display shows CLR TX.
Your radio cannot transmit until you toggle the Secure/
Clear button to the clear mode.
Selecting Clear Transmissions†‡
Procedure:
Press the preprogrammed Secure/Clear button to the clear
secure mode.
Note: If the selected channel is preprogrammed for secure-
only operation – when you press the PTT button, an
invalid mode tone sounds and the display shows SEC
TX.
Your radio cannot transmit until you toggle the Secure/
Clear button to the secure mode.
The radio can be configured to ignore the clear voice or
insecured transmission when the radio is in secured
transmission. Check with your agent for details.
Advanced
APX_3000_M1.book Page 48 Thursday, November 7, 2013 4:48 PM
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