xSDR module

A compact 2RX/2TX Software Defined Radio module in a single-sided M.2 2230 A+E key form factor.

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Introduction

The xSDR is an embedded M.2 Software Defined Radio (SDR) card designed for integration into compact RF systems, edge platforms, laptops, industrial computers, and custom embedded devices.

It provides 2 receive and 2 transmit channels, an RF tuning range from 30 MHz to 3.8 GHz, and a compact M.2 2230 A+E key form factor with USB 2.0 and PCIe 2.0 x2 host interfaces.

By combining the xSDR with the wsdr.io WebSDR platform, users can run SDR applications directly from a browser, stream or share IQ data, and build distributed RF systems without complex driver or software installation.

Key Features

  • 2 RX / 2 TX SDR architecture

  • 30 MHz to 3.8 GHz frequency range

  • Up to 100 MSps sample rate

  • Up to 90 MHz channel bandwidth

  • M.2 2230 A+E key single-sided form factor

  • USB 2.0 and PCIe 2.0 x2 host interface

  • External clock synchronization

  • Low-power embedded operation

  • WebSDR, GNU Radio, SoapySDR, srsRAN, and Amarisoft support

General Specifications

FPGA

  • AMD Artix-7 XC7A50T

  • AMD Artix-7 XC7A35T

RFIC

  • Lime Microsystems LMS7002M

Configuration

  • 2 RX / 2 TX

Power Consumption

  • 1.9 W Typical

  • 3 W Max

Interface

  • M.2 2230 A+E key

  • USB 2.0

  • PCIe 2.0 x2

Power Supply Range

  • 2.85 V to 5.5 V

External Clock Synchronization

  • Supports synchronization of multiple boards for multi-channel and distributed RF systems

RF Specifications

Frequency Range

  • 30 MHz to 3.8 GHz

Sample Rate

  • 0.1 MSps to 100 MSps

Channel Bandwidth

  • 0.5 MHz to 90 MHz

RF Architecture

  • Full-duplex direct-conversion SDR transceiver

Pinout

xSDR module

Embedded Integration

The xSDR is designed for compact embedded deployment where size, power, and flexibility are critical. It can be integrated into:

  • Embedded computers

  • Edge AI platforms

  • Industrial PCs

  • Portable RF systems

  • Robotics and unmanned systems

  • Custom carrier boards

  • Mini PCIe systems using an adapter

WebSDR Platform

The xSDR is compatible with the Wavelet Lab WebSDR platform, enabling browser-based SDR workflows.

Using wsdr.io, users can:

  • Run SDR applications in a browser

  • Access hardware remotely

  • Stream and share IQ data

  • Build distributed RF sensing networks

  • Collaborate across multiple locations

  • Reduce setup time by avoiding complex local software installation

Target Applications

Cellular Communication

  • Build LTE and 5G research networks using srsRAN or Amarisoft

Embedded RF Systems

  • Add SDR capability to compact embedded platforms, edge devices, and portable systems

Spectrum Monitoring

  • Develop compact RF monitoring systems for signal detection, interference analysis, and spectrum observation

Distributed RF Sensing

  • Deploy multiple synchronized xSDR devices for distributed sensing and remote RF data collection

Data Link Applications

  • Build flexible communication links and stream data through local or web-connected SDR systems

Software Support

Web Platform

  • wsdr.io WebSDR platform

Native Software

  • GNU Radio

  • SoapySDR

  • srsRAN

  • Amarisoft

  • SDR++

  • CubicSDR

  • GQRX

Licensing

Host Software

  • MIT License

FPGA Gateware

  • CERN-OHL-P-2.0