Motorola APX 4000 User Manual

Adjusting the Volume
Ensure the radio is power on and the main speaker is
pointed towards you for increased loudness and
intelligibility, especially in areas with loud background
noises.
Your radio is preprogrammed to reset to medium
volume rate, which is Level 12, by default whenever
the radio powers up.
1 Select one of the following actions based on the
radio models you are using.
•
To increase the volume, rotate the Multi-
Function Knob ( ) clockwise.
A
•
To increase the volume, rotate the
On/Off/Volume Control Knob (
) clockwise.
Preparing Your Radio for Use
29
English

Motorola APX 4000 Specifications

General

IP Rating	IP67
Operating Temperature	-30°C to +60°C
GPS	Optional
Frequency Range	VHF: 136-174 MHz, UHF: 380-470 MHz, 450-520 MHz
Power Output	VHF: 1-5W; UHF: 1-4W
Digital Protocol	APCO P25
Dimensions	5.2 x 2.4 x 1.5 inches (without battery)