Basic operation 35
3 Basic operation
This section describes the basic operation of your
radio.
This section covers:
■ Turning the radio on and off
■ Adjusting the speaker volume
■ Activating the external speaker
■ Locking and unlocking the keypad
■ Selecting a zone
■ Selecting a channel
■ Limiting call time
■ Checking recent calls
■ Setting and viewing the radio’s time and date
■ Updating the radio over the air