Uniden UH-040XR - Manual (Page 9)

➤ When you press any key (except PTT), a short tone sounds.
➤ See the Controls and Indicators page at the back of this operating guide for
button and key operations.
POWER ON/OFF
To turn the unit ON, rotate the [ON/OFF VOL]
clockwise until a “click” is heard. A channel number
and battery level should appear on the display.
To turn the unit OFF, rotate the [ON/OFF VOL]
knob counter-clockwise until a “click” is heard.
The display will disappear.
VOLUME
1. Press the [MON] button to hear
background noise. The “BUSY” icon will
appear on the display.
2. Turn the [ON/OFF VOL] control clockwise to
increase the volume, counterclockwise to
decrease the volume.
OPERATION
6