8BASIC OPERATIONSSWITCHING POWER ON/ OFFPress the switch to switch the transceiver ON.• A beep sounds and “ ” appears momentarily.• If the Radio Password function is programmed, “ ” will appear on the displaywhen the power is turned ON. Refer to “Radio Password”, below.Press and hold the switch for approximately 1 second to switch thetransceiver OFF.■ Radio PasswordTo unlock the transceiver, enter the password as described below. Thepassword can contain a maximum of 6 digits.To enter the password using the keypad of an optional microphone (KMC-32):1 Press the microphone numeric keys corresponding to the password digits.2 Press the microphone # key to confirm the password.• If you enter the wrong password, an error tone sounds and the transceiverremains locked.To enter the password using the transceiver front panel keys:1 Press the front panel keys corresponding to the password digits:MON = 1, SCN = 2, ● = 3, O = 4.2 Press the CH key (right side) to confirm the password.• If you enter the wrong password, an error tone sounds and the transceiverremains locked.ADJUSTING THE VOLUMEPress the VOL key (left side) to increase the volume. Press the key (leftside) to decrease the volume.If Monitor has been programmed onto a key, you can press and hold the Monitorkey to listen to background noise while adjusting the volume level (refer to“M ONITOR ” on page 18).