RCA PRODIGI RDR42 Series Instruction Manual Download Page 4

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Communications Systems

RDR42x0 Professional Digital
Two-Way Radios

INSTRUCTION MANUAL

Attaching / Removing the Belt Clip

Use the 2 screws (M2.5x8.0) supplied with the radio and insert these
screws through the holes in the radio clip and into the holes in the
aluminum case. If you want to remove the clip from the radio, just
unscrew them, and remove the clip. You can put the screws back into
the radio to make sure you do not lose them. (See Figure 4)

Programmable Buttons

Your RCA Communications Systems Dealer can program the
programmable buttons as shortcuts to radio functions or preset
channels/groups depending on the duration of a button press:

Short Press

- Press and release quickly.

Long Press

- Press and hold for the programmed duration (between 1

seconds and 3.75 seconds).

Connecting Audio Accessories

Open the cover of the connector for external speaker/MIC, and
then insert the plug of the external speaker or microphone onto the
connector socket of the radio. When screwing the accessory plug,
make sure it is properly aligned (straight) to ensure the right connection
to the connector of the radio. (See Figure 5)

All Alert Tones On/Off

- Toggles all tones and alerts on or off.

Emergency On

- Initiates an emergency alarm or call.

Emergency Off

- Cancels an emergency alarm or call.

Nuisance Delete

- Temporarily removes an unwanted channel, except the

Selected Channel, from the scan list. The Selected Channel refers to the
user’s selected zone/channel combination from which scan is initiated.

High/Low Transmit Power

- Toggles transmit power level between high

and low.

Monitor On/Off

- Monitors a selected channel for activity.

One Touch Access

- Directly initiates a predefined Private or Group Call,

a Call Alert or a Quick Text message.

Scan On/Off

- Toggles scan on or off. Tight/Normal Squelch -

Toggles squelch level between tight and normal squelch levels.
Privacy On/Off - Toggles privacy (basic voice encryption) on or off.

VOX On/Off

- Toggles Voice Activated Function on or off.

Lone Worker On/Off

- Toggles Lone Worker feature On or Off, on per

channel basis.

Zone Toggle

(

RDR4220

) - Toggles between Channel Zone 1 and Channel

Zone 2.

Battery Indicator

(

RDR4220

) - Indicates battery charge level, low,

medium or high.

Turn On/Off the Radio

1. Rotate the On/Off/Volume Control Knob clockwise until you hear a

click. The LED blinks orange and a brief tone sounds, indicating that
the power up test is successful. The RDR4250 & RDR4280 radio
displays “RCA RDR42X0

DMR Radio” when powered up.

2. To turn off the radio, rotate the knob counterclockwise until you hear

a click.

Note:

There is no power up tone if the radio tones/alerts function is

disabled. If your radio does not power up, check your battery. Make
sure that it is charged and properly attached. If your radio still does not
power up, contact your RCA Communications Systems dealer.

Adjusting the Volume

To increase the volume, turn the On/Off/ Volume Control Knob
clockwise. To decrease the volume, turn this knob counterclockwise.

Select A Channel

Rotate the Channel Selector Knob to the desired channel. or to switch
between channels. Channels can be configured as analog or digital
channel. Your radio has features that are available in both analog and digital
mode. The minor differences in the way each feature works does not affect
the performance of your radio.

Programmable Functions

Adjust Power Level

Nuisance Delete

Adjust Squelch Level

One Touch Call 1

All Alert Tones On/Off

One Touch Call 2

Accessory Link Audio Switch

One Touch Call 3

Channel Down

One Touch Call 4

Channel Knob Disable