User Manual

Verifying DMSCK Validity
When and where to use: To ensure that the DMSCKs in the radio are valid and can be used for the
air interface encryption.
Procedure:
1 From the home screen, press the MENU key.
2 Select Security → DMSCK Validity.
3 The radio displays:
• DMSCK is Valid – the radio can work encrypted in DMO.
• DMSCK is Invalid – the radio cannot work encrypted in DMO. Please contact your service
provider to restore SCKs to your radio.
Covert Mode
This feature enables you to completely shut down all visible and audible alerts and notifications making
the radio unnoticeable even in a silent and dark environment.
When your radio is in the Covert Mode, you cannot enter the following menu items of the Setup menu.
• Set Volume
• Tones
• Backlight (in Display menu item)
When the Covert Mode is turned on:
• All tones are set to Off (corresponding to All Tones menu entry).
• Group audio is set to Spkr Cntrl (corresponding to Audio Toggle menu entry).
• The private speaker is set to Off (this setting causes all the calls are routed through the earpiece).
• Backlight is set to Disabled (corresponding to Backlight menu entry).
• The LED indicator is switched off.
The radio powers up in the mode set before turning off. Thus if the Covert Mode was set before turning
off, the radio turns on in the Covert Mode .
When the Covert Mode is turned off, all the changed settings are reverted to the previous state.
This feature can be used as the One-Touch Button.
Activating the Covert Mode
Procedure:
1 From the home screen, press the MENU key.
2 Select Security → Covert Mode.
3 Select one of the following:
• On — all tones are set to off, and the backlight and the LED are disabled immediately. The
group audio is routed to the earpiece. The radio displays Covert Mode On.
• Off — all settings for tones, backlight and audio are restored. The radio displays Covert
Mode Off.
Chapter 5: Main Menu
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