Motorola RDU2020, RDV5100, RDV2020, RDU4100 manual Getting Started

To establish a proper two-way communication, the channel, frequency, and interference eliminator codes must be the same on both radios. This depends on the stored profile that has been preprogrammed on the radio:

1.Channel: Current channel that the radio is using, depending on radio model.

2.Frequency: The frequency the radio uses to transmit/receive.

3.Interference Eliminator Code: These codes help minimize interference by providing a choice of code combinations.

4.Scramble Code: Codes that make the transmissions sound garbled to anyone listening who is not set to that specific code.

5.Bandwidth: Some frequencies have selectable channel spacing, which must match other radios for optimum audio quality.

For details on how to set up frequencies and CTCSS/DPL codes in the channels, refer to “Programming Selection Mode” in page 36.

GETTING STARTED