Digilent NI Ettus USRP B205mini-i
Software Defined RadioCompact single-channel SDR covering 70 MHz to 6 GHz with GPSDO option and GPIO header in a board-level module for embedded wireless applications. India pricing from GSAS.
Frequency
70 MHz – 6 GHz continuous
Channels
1 Tx / 1 Rx (full duplex)
Bandwidth
Up to 56 MHz
Sample Rate
61.44 MS/s quadrature
FPGA
Xilinx Spartan-6
Interface
USB 3.0 (bus-powered)
Overview
About NI Ettus USRP B205mini-i
The NI Ettus USRP B205mini-i is a compact, single-channel software defined radio module providing continuous frequency coverage from 70 MHz to 6 GHz with GPIO header access and optional GPSDO (GPS Disciplined Oscillator) support for frequency-locked operation. Building on the B200mini’s compact form factor, the B205mini-i adds GPIO expansion and GPSDO connectivity, enabling time-synchronized and location-stamped RF measurements for deployed wireless sensing, geolocation research, and distributed spectrum monitoring applications.
USRP B205mini-i Specifications
| Feature | Specification |
|---|---|
| Frequency Range | 70 MHz – 6 GHz continuous |
| Channels | 1 Tx / 1 Rx (full duplex) |
| Instantaneous Bandwidth | Up to 56 MHz |
| Sample Rate | 61.44 MS/s quadrature |
| RF IC | Analog Devices AD9364 |
| FPGA | Xilinx Spartan-6 |
| Interface | USB 3.0 SuperSpeed |
| Power | Bus-powered via USB |
| GPIO | Header for digital I/O |
| GPSDO | Optional GPS Disciplined Oscillator |
| Form Factor | Board-level module |
| Software | UHD, GNU Radio |
GPSDO and GPIO Expansion
The optional GPSDO support provides GPS-disciplined 10 MHz reference and PPS (pulse-per-second) signals, enabling the B205mini-i to maintain frequency accuracy to parts-per-billion levels and timestamp captures with GPS precision. The GPIO header exposes digital I/O lines for triggering external equipment, controlling RF switches, or interfacing with custom hardware, capabilities not available on the simpler B200mini.
Applications
The B205mini-i targets deployed wireless sensing nodes, portable direction-finding systems, GPS-synchronized spectrum monitoring, drone-mounted RF payloads, and field-deployed cognitive radio installations where time-synchronized measurements and compact form factor are both required. Full UHD compatibility ensures software portability across the USRP product family.
GSAS Micro Systems provides the USRP B205mini-i as part of the NI Ettus SDR portfolio available through Digilent, with guidance on USRP model selection and UHD/GNU Radio setup for research teams across Bengaluru, Chennai, Hyderabad, Delhi NCR, Mumbai, and Pune.
Blog
Digilent Insights
Real-World SDR Applications: 5G Research, Satellites, IoT and ADS-B
Where software defined radio actually earns its place: 5G and 6G waveform research, spectrum monitoring, weather satellite reception, GNSS work, LoRaWAN debugging, aircraft tracking over 1090 MHz, and reconfigurable instrument prototyping. A practical map from GSAS Micro Systems, an authorized Digilent engineering partner in India, with a framework for matching a USRP platform to the job.
What Is Software Defined Radio (SDR)? A Practical Explainer for Indian Engineering Teams
Software defined radio moves the work of filtering, modulation and demodulation out of fixed hardware and into software running on processors and FPGAs. This explainer from GSAS Micro Systems covers what SDR is, how it differs from a traditional radio, what the signal chain looks like, why the FPGA matters, and how to pick a USRP radio in India.
ZedBoard FPGA-in-the-Loop: HDL Verifier vs HDL Coder
Teams asking for FPGA-in-the-Loop on a ZedBoard usually name HDL Coder and SoC Blockset. FIL is actually HDL Verifier. Here is the correct product split, the JTAG versus Ethernet decision, and the 2015-era advice that is still sending Indian teams down the wrong path.
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