User's Manual
SRM9022 ~ PMR MOBILE RADIO USER GUIDE
© TMC Radio 2007 page 17 TNM-U-E-0063 Issue 2
5. COMMON FUNCTIONS AND FACILITIES
5.1 SWITCH-ON/SWITCH-OFF
Momentarily press the red On/Off button to switch
the radio ON.
The display will illuminate and show a ‘Welcome
Message’ and the Selcall Identity of the radio.
After a brief time the display will revert to the Idle
Screen, at which time the radio is ready for use.
Pressing and holding the On/Off button for approximately 2 seconds will switch the
radio Off.
If the radio Inactivity Timer is enabled, the radio will automatically turn Off after
several hours of inactivity (i.e. no buttons pressed).
The radio will emit warning beeps for 10 seconds prior to switching off. Pressing any
button will reset this timer.
The radio can also be setup to switch on automatically with the Vehicle Ignition
whenever the vehicle is started.
5.1.1 Volume Adjustment
The top +/- buttons adjust the speech level at the
loudspeaker.
Whenever the volume level is adjusted, the screen
briefly shows the current volume setting.
Note: The radio may be programmed so that the volume cannot be turned off
completely.
5.2 RECEIVING
The radio will listen on the displayed Channel.
The Solid Speaker Icon
will show when a valid
signal is being received and audio will be heard at the
Loudspeaker.
An Outline Speaker Icon
will show if a signal is
present but the audio is muted for some reason (e.g.
incorrect CTCSS tone, or the Selcall Mute is closed).