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USRP B205mini-i: 1x1 USB Software-Defined Radio Platform


USRP B205mini-i: 1x1 USB Software-Defined Radio Platform

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Product Description

Support Materials

Reference ManualEttus Support

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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 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.

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.


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
  • USRP Hardware Driver 3.9.2 (or later)
  • GNU Radio
  • 10 MHz clock reference
  • PPS time reference


  • USRP B205mini-i (Board Only)
  • USB 3.0 cable

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