Additional Features
The following additional features are designed for you to customise your scanner. Once these features have been turned on or off, they will remain as they are set until you reset them, even if you turn the scanner off and then on again.
Dimmer
To change brightness of the display:
1.Press MENU.
2.Press E to select SYSTEM DATA.
3.Press E to select DIMMER.
4.Select one from
Enter Lock
You can lockout the keypad to prevent any accidental entry. To activate this feature:
1.Press MENU.
2.Press E to select SYSTEM DATA.
3.Press ▼ to select ENTER LOCK then press E.
4.Set to ON using ▲ or ▼ and then press E.
The 
icon appears on the display when locked.
Key Beep Option
To choose beep sound on or off:
1.Press MENU.
2.Press E to select SYSTEM DATA.
3.Press ▼ to select KEY BEEP and then press E.
4.Set to ON or OFF using ▲ or ▼ and then press E.
Screen Mask
The trunk, frequency, receiving mode, and signal meter indications on the display are masked when this feature is activated. (except while in Search mode) This feature reduces the amount of displayed information.
1.Press MENU.
2.Press E to select SYSTEM DATA.
3.Press ▼ to select SCREEN MASK and then press E.
4.Set to ON or OFF using ▲ or ▼ and then press E.
5.To quickly turn off the screen mask, press the VFO/SELECT control.
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