Wireless Voice Transceiver Module - DRA818U is a type of compact wireless voice transceiver module. DRA818U is based on RDA1846, works in UHF band. It integrates a high speed microcontroller, high performance wireless transceiver IC, high power PA, audio processing and squelching circuits.
Wireless Voice Transceiver Module - DRA818U provides standard UART interface which users can easily configure for different applications. DRA818U can be used to easily construct a walkie-talkie system by just connecting a microphone, audio PA and speaker.
DRA818U module has the same pin sequence and dimensions as DRA808M, so users can replace the DRA808M with it directly. In addition, DRA818U has CDCSS function (except CTCSS). With DRA818U users get the privilege to turn on/off Pre-emphasis/De-emphasis funciton using AT command,
Wireless Voice Transceiver Module - DRA818U Features:
- Tx/Rx frequency independent
- Channel space: 12.5/25KHz
- Configurable multi-channels
- Sensitivity: -122dBm
- Output power: +27/30dBm
- CTCSS / CDCSS codes
- 8 volume levels
- 8 squelch levels
- UART interface
- Temperature: -20°C ~+70°C
- TX current: 450/750mA
- Supply voltage: 3.3~4.5V
Wireless Voice Transceiver Module - DRA818U Applications:
- Portable walkie-talkie
- Outdoor sports products
- Audio monitor system
- Building security system
Wireless Voice Transceiver Module - DRA818U Package:
- 1x Wireless Voice Transceiver Module - DRA818U
Wireless Voice Transceiver Module - DRA818U Resources:
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