Software Defined Radio


A high performance software defined radio covering 5-20 GHz

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VXSDR-20 is a microwave software defined radio that transmits and receives from 5 to 20 GHz at 160 million samples per second. Its capabilities are similar to other high-end software defined radios: 10 gigabit Ethernet, support for C and C++ interfacing with Python and GnuRadio in progress, ability to synch multiple radios, etc.

Porting applications is straightforward, and the software and firmware are open source. It’s a modular design that can support multiple channels, higher or lower frequencies, and higher or lower sample rates in the future. Simultaneous full-rate transmit and receive over 10 Gb Ethernet is standard, and the radio can accept 10 MHz and 1 PPS frequency and time references.

Wide Frequency Range for the Rest of Us

Experimenters, scientists, and engineers use software defined radios to build systems for communication, sensing, navigation, and a wide range of other uses. They have become an important general-purpose tool, but the ones that you can buy today only cover frequencies of 6 GHz and below (with a few expensive exceptions). We built the VXSDR-20 so we (and others) could do the same things in the 5-20 GHz frequency range.

The VXSDR-20 is designed to be used like any other high performance SDR, but covering a wider 5-20 GHz frequency range. It’s usable for laboratory experiments in communications and sensing, including both transmitting and receiving as required. We’ve designed the host API so that porting from the widely used Ettus UHD API is straightforward.

Features & Specifications

Analog RF and IF


Control and Data Transfer




Open Source

We plan to open source this project and will be releasing documentation and files soon. In the meantime, detailed design and performance information are available at

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VXSDR-20 is part of Qorvo RF Accelerator!

In the Press

PCBWay Community Blog

"[VXSDR-20] is a modular design that will able to support multiple channels, higher or lower frequencies and higher or lower sample rates"

About the Team

Vesperix Corporation

Falls Church, Virginia, USA  ·

Small business doing R&D in communications, sensing, and navigation.

Tom Wallace


Jeff Buente

See Also

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