Hytera PD792i-Ex, Руководство пользователя

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Communication Security
Services
The features described in this section ensure
communication security.
Using the Encrypt Feature
The Encrypt feature prevents eavesdropping and ensures
communication privacy. It allows the radio to
automatically encrypt transmitted voice or data. Only the
receiving radio with the same key value or ID can
decrypt the voice or data.
Turning the Encrypt Feature On or Off
Go to Menu > Settings > Radio Set > Encrypt > On/Off ,
and then select On or Off .
Setting the Encrypt Key (Conventional
Only)
You can add, edit, or select an encrypt key.
Adding an Encrypt Key
Go to
Menu
>
Settings
>
Radio Set
>
Encrypt
>
New
Key , set the related parameters, and then select Save .
The related parameters are as follows:
l
Key ID : a unique key index ranging from 1 to 255.
l
Key Alias : a string containing up to 16 characters.
l Key Length : the number (10, 32, or 64) of characters
in the key.
l
Key Value
: a string containing digits and letters A to
F.
Selecting an Encrypt Key
1. Go to Menu > Settings > Radio Set > Encrypt >
Key List .
2. Select the required key, and then select Select .
Editing an Encrypt Key
1. Go to Menu > Settings > Radio Set > Encrypt >
Key List .
2. Select the required key, and then select Edit .
3. Edit the ID, alias, or value, and then select Save .
Selecting Encrypted Service (Trunking
Only)
In trunking mode, you can set which kind of service will
be encrypted. Do as follows:
1. Go to Menu > Settings > Radio Set > Encrypt >
Encrypt Service .
2. Select Only Voice , Only Data , or Voice and Data as
required.
Turning the Scrambler Feature On
or Off
The Scrambler feature allows the radio to invert the
frequency spectrum of transmitted audio signals. Only the
receiving radio with the same scrambler setting can
restore the audio signals. This prevents eavesdropping
and ensures communication privacy.
To enable or disable this feature, go to Menu > Settings
> Radio Set > Scrambler , and then select Enable or
Disable .
Erasing Data in Emergency
In case of emergency, you can erase encryption data
from the radio to prevent the data from unauthorized
access.
To erase the data, press the SK1 and PTT key by turns
twice, and make sure the press interval is less than 1.5
seconds. Then, press SK1 to confirm.
Restoring the Stunned Radio
When being stunned, the radio displays "Radio Stunned!"
In this case, you cannot initiate call or message services.
To restore normal operation, request your dealer to
program the radio or send a Revive command. When
being enabled by a Revive command, the radio displays
"Revive Success!"
Restoring the Killed Radio
When being killed, the radio displays "Radio Killed!" In
this case, you can only turn the radio on or off.
To restore normal operation, request your dealer to burn
the radio firmware.
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