Ettus USRP B205mini-i: 1x1, 70MHz-6GHz SDR/Cognitive Radio

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The USRP B205mini-i is a flexible and compact platform that is ideal for both hobbyist and OEM applications. It is designed by Ettus Research™ and provides a wide frequency range (70 MHz to 6 GHz) and a user-programmable, industrial-grade Xilinx Spartan-6 XC6SLX150 FPGA. The similar Ettus USRP B200mini is limited to a narrower operating temperature range and utilizes a smaller FPGA.

The RF front end uses the Analog Devices AD9364 RFIC transceiver with 56 MHz of instantaneous bandwidth. The board is bus-powered by a high-speed USB 3.0 connection for streaming data to the host computer. The USRP B205mini-i also includes connectors for GPIO, JTAG, and synchronization with a 10 MHz clock reference or PPS time reference input signal.

Experimentation with Low-cost SDR

Experiment with the USRP B205mini-i across a wide range of applications including: FM and TV broadcast, cellular, GPS, WiFi, ISM, and more. Users can immediately begin prototyping in GNU Radio and participate in the open-source SDR community. Full support by the USRP Hardware Driver™ (UHD) software allows seamless code reuse from existing designs, compatibility with open-source applications like HDSDR and OpenBTS, and an upgrade path to industry-ready USRP systems to meet application requirements.

The hardware is conveniently accessible through the USRP Hardware Driver (UHD). UHD provides both a C/C++ and Python API that supports all USRP products and enables users to efficiently develop applications then seamlessly transition designs between platforms as requirements expand. UHD also offers cross-platform support for multiple industry standard development environments and frameworks, including RFNoC, LabVIEW, and MATLAB/Simulink. To ensure you have no restrictions on how you use UHD, it is available on Linux, Windows, and Mac OS. Do you prefer graphical programming? Try out GNU Radio, a free and open-source software development framework offering a graphical design approach.

All Ettus products sold through Digilent include Ettus's standard warranty. Find out more on

 RF Specifications
    • Channels: 1 TX, 1 RX
    • Frequency range: 70 MHz to 6 GHz
    • Instantaneous Bandwidth: Up to 56 MHz
    • IIP3 (at typical NF): -20 dBm
    • Power Output: >10 dBm
    • Receive Noise Figure: <8 dB
 Conversion Performance and Clocks
    • ADC Sample Rate (Max.): 61.44 MS/s
    • ADC Resolution: 12 bits
    • DAC Sample Rate (Max.): 61.44 MS/s
    • DAC Resolution: 12 bits
    • Host Sample Rate (16b): 61.44 MS/s
    • Frequency Accuracy: +/-2.0 ppm
    • USB Power: 5V
    • Dimensions: 83.3 x 50.8 x 8.4 mm
    • Weight: 24.0 g
    • Operating Temp. Range: 0 - 45 °C (extended to -40-75 °C with enclosure kit)
    • USRP Hardware Driver 3.9.2 (or later)
    • GNU Radio
    • 10 MHz clock reference
    • PPS time reference
 Product Compliance
    • HTC: 8471809000
    • ECCN: 3A992.a
  • USRP B205mini-i
  • USRP Enclosure Kit is available as a bundle option and can also be purchased separately
  • USB 3.0 cable

Quickly find what you need to get started and reduce mean time to blink.

All product support including documentation, projects, and reference material can be accessed through Ettus resources.

Ettus Knowledge Base

Quick Links

Getting Started Guides
Ettus USRP Manual
Ettus Support