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15
COMMUNICATION SECURITY
The transceiver is equipped with functions to enhance secrecy in communications on each analog channels and NXDN
digital channels.
15.1
Built-in Voice Scrambler (Analog)
Voice Scrambler is the function to scramble the audio signal so that the contents of communications can be prevented
from being intercepted.
The transceiver is equipped with an entry-level speech inversion scrambler.
Note
Voice Scrambler can be only used in an Analog Conventional system.
Enabling the Voice Scrambler
Voice Scrambler is enabled by a user selecting an analog channel where Voice Scrambler is enabled.
Voice Scrambler can be enabled or disabled for each channel by using KPG-169D/ KPG-170D/ KPG-175D.
A Scrambler Code from 1 to 16, which is used for when the transceiver scrambles and sends the audio signal and when
the transceiver receives the scrambled audio signal, can be configured for each channel.
Note
• The inversion frequency of each Scrambler Code from 1 to 16 can be configured to "Kenwood" or in the range from 2000 Hz to 4096
Hz by using KPG-169D/ KPG-170D/ KPG-175D.
• If "Zone-Channel + Others" is configured for Voice Announcement, "Scrambler" is announced following the announcement of the zone
number and channel number when a channel where Voice Scrambler is enabled is selected. (Refer to
on page
37.)
• For Mobile, the transceiver can be configured to light the 2 dots on the LED display (the left dot and the right dot) and the LED (blue)
when Voice Scrambler is enabled. (Refer to
Configuration using KPG-169D/ KPG-170D/ KPG-175D
•
Configuring the Voice Scrambler to be enabled or disabled (
Page 2 > Scrambler Setting)
•
Configuring the Scrambler Code (
•
Configuring the inversion frequency of a Scrambler Code (
Inversion Frequency)
Toggling the Voice Scrambler between Enabled and Disabled
The configuration status of Voice Scrambler for each channel can be toggled between enabled and disabled by using the
Scrambler/ Encryption key.
Pressing the Scrambler/ Encryption key toggles Voice Scrambler between enabled and disabled.
FUNC (K)/Ver 1.20
5.5 Lighting the LEDs According to the Transceiver's Status on page
See
See
Edit > Zone Information > Channel Edit > Page 2 > Scrambler Setting)
See
6.7 Using Voice Announcement
Edit > Zone Information > Channel Edit >
Edit > Optional Features > Scrambler >
CONTENTS
25.)
INDEX
163
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