User Manual

RADIO OVERVIEW

English

On/Off/Volume Knob

Used to turn the radio ON or OFF and to adjust

the radio’s volume.

Channel Selector Knob

Used to switch the radio to different channels.

Accessory Connector

Used to connect compatible audio accessories.

Model Label

Indicates the model of the radio.

Microphone

Speaks clearly into the microphone when

sending a message.

Antenna

For models RDU2020, and RDV2020 the

antennas are non-removable. For RDV5100,

RDU4100 antennas are removable.

LED Indicator

Used to give battery status, power-up status,

radio call information and scan status.

Side Buttons

Push-to-Talk (PTT) Button

• Press and hold down this button to talk, release it

to listen.

Side Button 1 (SB1)

• The Side Button 1 is a general button that can be

configured by the Computer Programming

Software - CPS. The default setting of SB1 is

‘Monitor’.

Side Button 2 (SB2)

• The Side Button 2 is a general button that can be

configured by the CPS. The SB2 default setting is

‘Scan/Nuisance Channel Delete’.

The Lithium-Ion (Li-Ion) Battery

RDX Series™ provides different types of

batteries. For more information, see “Battery

Features” on page 14.