Product description

The SCT2400 operates in the 2.4GHz ISM band and offers a comprehensive solution supporting near global usage without the need for complex licensing. Capable of replacing unlicensed PMR/LMR solutions (FRS/MURS/GMRS/PMR446), the SCT2400 offers a rich set of features supporting not only secure digital voice operation but also wireless data capabilities.

The SCT2400 also offers superior operating range over Wi-Fi based digital radio providing up to 30dB of additional sensitivity. Range is further extended using voice coding technology with enhanced error correction that also maintains voice clarity and a high level of voice security under the most demanding RF environments.

In comparison to other licensed and unlicensed PMR solutions the SCT2400 operates on a fraction of the power in both receive and transmit, enabling significantly longer operating times or the use of smaller batteries that allows innovative small form factor solutions to be realised.

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Devices are available through our distributors below:


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  • RFMW logo

Block diagram


Product SnapShot


  • Highly integrated 2.4GHz spread spectrum radio transceiver
  • Range optimized vocoder
  • Digital voice modes
    • Peer to peer
    • Group Call
    • Broadcast
  • Data Modes
    • SMS
  • 12.5dBm RF TX power
  • Single 3V supply
  • Low power consumption
    • 10mA standby/scanning
    • 52mA receive voice
    • 64mA transmit voice
  • 144-BGA package (10mm x 10mm)




  • License Free 2.4GHz Voice + Data
  • Intercoms
  • Access control and gate entry
  • Two-way radio, PMR/LMR
  • Wearable communications
  • Wireless headsets


Power supply requirement

  • 3.3 V

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Design resources

Evaluation and Demonstration Kits



The SCT2400EVM is designed to assist in the evaluation and application development of the SCT2400 2.4GHz Digital Voice and Data Transceiver.


SCT2400EVM Product Preview

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Knowledge Base

SCT2400 Packet Interface – A guide to the SCT2400 UART interface for configuring and extending functionality using an external host processor. This allows features such as a display and SMS messages to be supported. Version 1.6C – Please register or login to download

CPS – Customer Programming Software to allow the SCT2400 to be configured with a user profile prior to shipping to end-customersTechnical Portal

SCT2400 EVM High resolution schematic. Version 2.0 – Please register or login to download

SCT2400 High resolution overlays. Version 2.0 – Please register or login to download

SCT2400 PCB manufacturing data for Altium. Version 2.0 – Please register or login to download

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