28 Basic operation
When the radio is first turned on, the red, green, and
orange LEDs flash, and the radio gives two short
beeps. A message briefly appears in the display.
Adjusting the speaker volume
The volume control also changes the volume level of
the radio’s audible indicators.
Standard control head
■
Rotate the volume control clockwise to increase
the speaker volume and counterclockwise to
decrease the volume.
The raised dot indicates the current volume setting.
Hand-held control head
■
Press
to increase the speaker volume, and
to decrease the volume.
Activating the external speaker
An external speaker is used to increase the volume of
the audio from the radio’s standard speaker.
To check the current state of the external speaker:
■
Short press the function key programmed for
external speaker.
The message
PA Speaker is active
(or
PA Speaker
is not active
) briefly appears in the display.
To turn on the external speaker:
■
Long press the function key programmed for
external speaker.
Summary of Contents for TM9456
Page 1: ...TM9456 Dual Radio User s Guide MAU 03301 01 01 Issue 1 July 2016 ...
Page 2: ......
Page 55: ...Hearing faint and noisy signals 55 ...
Page 61: ...Dual radio operation 61 ...
Page 128: ...128 zones about 34 selecting 34 ...