User's Guide

Chapter 12
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.
12.1
Switching Between Secure and Clear Transmission
Procedure:
1 To select Secure Transmission, press the programmed Secure/Clear side button.
When you press the PTT button and the selected channel is programmed for clear only
operation, your radio shows the following indications.
• A negative tone sounds.
• The display shows Clear TX only.
The radio does not transmit until you set the Secure/Clear side button to clear mode.
2 To select Clear Transmission, press the programmed Secure/Clear side button.
When you press the PTT button and the selected channel is programmed for secure only
operation, your radio shows the following indications.
• A negative tone sounds.
• The display shows Secure TX only.
The radio does not transmit until you set the Secure/Clear side button to secure mode.
NOTE: If the Ignore Secure/Clear Switch When Strapped field is enabled, the radio
transmits without displaying any messages in the strapped mode operation. The Secure/
Clear side button is only applicable when the radio is transmitting.
12.2
Encryption
This chapter explains the encryption feature on your radio.
NOTE: Contact your system administrator for more information.
12.2.1
Multikey Feature
This feature allows the radio to be equipped with different encryption keys.
There are two types of encryption keys:
MN009363A01-AA
Secure Operations
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