SR-DMR-2WF

Digital 2way radio module Spec.

Full duplex /DMR/ 400M-470M

1      Summary

1.1  Brief Introduction

SR_DMR_2WF : Use digital intercom module with the DMR standard, support simplex voice, acknowledged / unacknowledged data SMS communication.

This module internally installed high-powered RF transceiver chip, RF power amplifier, and DMR digital intercom chip.

The external MCU can set the working parameter of the module by the standard asynchronous serial port communication and control the working state of the module.

Only an external antenna, a microphone and a voice amplifier are needed for the module to form a complete DMR digital interphone.

It support both half duplex and full duplex;

1.2  Application Fields

• Miniaturization digital interphone

• Digital communication system of mobile phone

2.        Characteristics

• Frequency Range：400~470MHz

• Frequency Space：12.5kHz

• RF output power：high power 2W，low power 1W

• Supply Voltage：12V

• High Receiving Sensitivity：￡-120dBm

• The following businesses are supported under the mode of DMR

• Support group calling, individual calling, general calls

• Support full duplex voice intercom

• Support acknowledged/unacknowledged SMS communication and status short message

• Support calling/called detection

• Support call alert

• Support remote monitoring

• Support voice and SMS application with shoot-through state and relay mode