Tagged: usdr

xSDR Crowdfunding Campaign Now Live

Back in January, we posted about the upcoming crowdfunding campaign for Wavelet Lab's M.2 form factor xSDR software-defined radio product. The campaign went live a few days ago, with the xSDR priced at US$549 and a delivery date of July 15, 2026.

xSDR is a compact, single-sided M.2 software-defined radio designed for seamless integration into modern computing platforms. The “x” stands for extended; xSDR delivers extended bandwidth in the same minimal footprint as our previous model, uSDR. With 2x2 MIMO RX/TX channels, a wide 30 MHz–3.8 GHz tuning range, and up to 122.88 MSPS sampling and an updated FPGA, xSDR is a flexible platform for embedded RF, wireless research, signal intelligence, and rapid prototyping.

Designed to fit the M.2 2230 A+E-key form factor (30 mm × 22 mm), xSDR plugs directly into laptops, tablets, smartphones, and embedded computers. When paired with the wsdr.io web platform, it enables instant creation, control, and sharing of RF applications right from a browser, with no complex drivers or software setup required.

We note that sSDR, their higher end software defined radio product is due to be released for crowdfunding in March.

xSDR - A tiny, single-sided M.2 software-defined radio with 2× RX / TX channels up to 3.8 GHz

New Upcoming Crowdfunded SDRs from Wavelet Lab: xSDR and sSDR

Thank you to Andrew from Wavelet Lab, the original creators of uSDR and xMASS SDR, for writing in and sharing news about two of their soon-to-be-released SDR hardware products, xSDR and sSDR. 

If you are unfamiliar with Wavelet Labs' previous products, uSDR is a small M.2 SDR board based on the Lime LMS6002D chip. It has both TX and RX capabilities, a 300 - 3700 MHz tuning range, and up to 28 MHz of bandwidth. xMASS, on the other hand, uses multiple modular 'xSDR' boards to create an up to 8x8 MIMO receiver. Previously, xSDR was only available for purchase with an xMASS board, but the new crowdfunding campaign makes xSDR available as a standalone product.

Andrew summarizes:

xSDR - a compact SDR module derived from the xMASS SDR (2 RX / 2 TX). We’ve seen many requests for the module itself, so we decided to make it available as a standalone product.

We add that xSDR has 2x2 MIMO RX/TX capabilities, an extended tuning range of 30 MHz to 3.8 GHz, and a channel bandwidth of up to 90 MHz. It retains the same M.2 connector and form factor as the uSDR. 

sSDR - an M.2 form-factor SDR covering up to 11 GHz. This is our most ambitious bet so far, as there’s currently no comparable alternative on the market in this price range (~$1k).

sSDR has even higher rated specs, with 2x2 MIMO RX/TX capabilities, a tuning range of 30 MHz to 11 GHz, and a bandwidth of up to 120 MHz.

Andrew notes that xSDR is due to be released at the end of January, and sSDR in March.

xSDR (top) and sSDR (bottom)

xMASS SDR – 8×8 MIMO Transceiver for 4G/5G Applications to be Crowd Funded

Thank you to creators Sergey and Andrew who have submitted news about their upcoming software defined radio called 'xMASS SDR'. xMASS will be a SDR with 8 RX and 8 TX channels, with a max sample rate of 60 MSPS per 8 channels, or 100 MSPS per 4 channels, and a frequency range of 30 - 3800 MHz.

The board comes in a modular PCIe form factor, with 4x FPGAs, and GPS/PPS clock sync input. The system is designed in mind for 4G/5G applications but should be useful for other applications too.

xMASS SDR will be crowd-funded on CrowdSupply, and they note that they expect to launch the campaign soon. So if you are interested, sign up for email updates on their CrowdSupply page.

Sergey and Andrew write:

We’re creators (Sergey Kostanbaev and Anrew Avtushenko) of the M.2 uSDR board that we successfully crowdsourced a year ago. Now we want to share our new invention called xMASS SDR, a modular, high-performance MIMO transceiver. It has 8 RX and 8 TX channels that can be synchronized for directional finding, beamforming and more applications. Each SDR module, called xSDR, is based on the LMS7002M chip and can deliver 2 RX and 2 TX channels. Like uSDR, xSDR shares the same form factor and M.2 pinout and both use the same open-source software and gateware stack.

xMASS SDR is ideal for 4G/5G but can be interesting among academic, industrial and advanced hobbyists. 

The xMASS SDR board connected via PCIe on a motherboard.
The xMASS SDR board connected via PCIe on a motherboard.
The xMASS SDR board with 4x uSDR modules by itself.
The xMASS SDR board with 4x modules by itself.

uSDR Software Updated to V1.7.0

Thank you to Viol for writing in and letting us know that his uSDR software has recently been updated to V1.7.0. The uSDR software (not to be confused with the unrelated uSDR hardware) is a lightweight general-purpose multimode program for Windows that supports the RTL-SDR, Airspy, BladeRF, HackRF, LimeSDR, and other SDR radios.

Viol highlights the latest features added in the 1.7.0 update below:

  • Fobos SDR frontend native support, the very new SDR from RigExpert
  • bladeRF API v2.5.0 support, oversampling mode up to 122.88 MHz sample rate (do not forget to update FX3 firmware)
  • advanced IQ playback mode, precise timing and streaming
  • improved DSP routines and memory management, minimized CPU load
  • excellent ruler tool for spectrum frequency and amplitude measurements
uSDR Updated to Version 1.7.0. Images shows FobosSDR support.
uSDR Updated to Version 1.7.0. Images shows FobosSDR support.

CrowdFunding for the uSDR has started: A $299 M.2 TX/RX 300-3700 MHz, 30.72 MSPS SDR

Back in May we posted about pre-release news of the uSDR, a duplex TX & RX capable software defined radio, with a frequency range of 300-3700 MHz, and up to 30.72 MSPS of sampling rate. It also has an interesting defining feature in that it can be controlled via a web browser and that it connect via an M.2 slot (with a USB adapter available too).

The uSDR recently started it's crowd funding phase on CrowdSupply a few hours ago. It is priced at $299 for the uSDR board, with various adapters and antennas also available for purchase.

The CrowdSupply page has been updated and includes full details about the SDR, noting it's use of the LMS6002 SDR chip from Lime Microsystems and a Xilinx Artix 7 XC7A35T FPGA.

They also show screenshots of their web software which is looking pretty slick. It appears that you can instantiate various apps from the web interface. The apps include a 2G cellular network, FM receiver, IQ generator, IQ playback, frequency spectrum monitor, device sharing, signal analyzer, signal inspector and spectrogram.

uSDR. A Tiny M.2 single component SDR controlled from a Web browser

uSDR. Cellular network in a browser

 

uSDR: A TX/RX 300-3700 MHz, 30.72 MSPS Capable SDR with M.2 Interface and Web Browser Control

Over on CrowdSupply a new SDR called "uSDR" created by Wavelet SDR has been announced (not to be confused with the uSDR software). uSDR is a tiny SDR that interfaces via an M.2 slot on a PC/laptop motherboard. Typically M.2 slots are what you would use to connect a solid-state drives (SSD), but can also be used for adding expansion cards. However, a simple M.2 to USB adapter could be used to convert it into dongle form.

The uSDR is advertised of being a duplex TX & RX capable SDR, with a frequency range of 300-3700 MHz, and up to 30.72 Msps of sampling rate. It also has a 0.5 PPM TCXO. To keep it's tiny form factor, it uses small MHF4 antenna connectors.

The device appears to be based on the AMD Xilinx ARTIX-7 FPGA and the LimeMicro LMS6002 transceiver IC.

One interesting differentiating feature of the uSDR is that it is designed to be operated via it's web interface which can be accessed through Chrome. They make use of WebUSB technology, which allows Chrome to directly connect to USB devices. This should help eliminate installation and compatibility issues, and allow the SDR to easily be used over a network. Apart from the web interface it is also compatible with SoapySDR and GNU Radio. Sergey, one of the creators of uSDR wrote:

During development we focused on ease of use, thus it supports WebUSB interface. Meaning you can view Spectrogram, record or playback IQ data, do some signal analysis and even share your device over the internet to get others access to it. And all this doesn’t require any software or specific drivers and works in Linux/Windows/Mac OS/Android and more. One can even extend these applications and run their own.

The device is single channel covering a range ~230MHz-3.7GHz for TX / RX and we’re making it affordable. Last but not least you still can use this device with SoapySDR as a regular SDR.

The project is currently in it's early stages, with Crowd Funding expected to begin soon. Pricing is still unknown, however Sergey did mention that it will be affordable. Subscribe for announcements via their CrowdSupply page.

uSDR: A tiny, single-sided M.2 SDR board that you can operate easily using your web browser
uSDR web platform. FM Receiver showcase

uSDR Updated to Version 1.6.0

Thank you to Viol for submitting news about the latest update of his uSDR software. uSDR (aka microSDR) is a lightweight general purpose multimode program for Windows that supports the RTL-SDR, Airspy, BladeRF, HackRF and LimeSDR radios. Viol highlights the latest features in the new update below: 

  • Airspy HF+ Discovery frontend support
  • ExtIO*.dll interface support. Copy ExtIO*.dll and all dependencies to the root folder and have a fun
  • ExtIO_USRP.dll and all dependencies for USRP B210 included. Just install Zadig libusb driver and go
  • LimeSDR multiple frontends switch fixed
  • FM demodulator with inverted audio spectrum
  • DCS decoder
  • additional C/C++ source examples for remote IQ passband processing TCP client
  • advanced IQ file playback options
  • display hold peak spectrum mode, zoomable and panable plot, customized colors

As always all descriptions, screenshots and binaries could be found on 

https://sourceforge.net/projects/u-sdr/

uSDR aka microSDR. A lightweight SDR receiver program for Windows.

Lightweight Windows Software uSDR Updated to Version 1.5.0

Since 2021 we've posted about Viol Tailor's "uSDR" (microSDR) software a couple of times. uSDR is a lightweight general purpose multimode program for Windows that supports the RTL-SDR, Airspy, BladeRF, HackRF and LimeSDR radios. The software can be downloaded from SourceForce.

Viol notes that recently the project has been updated to V1.5.0 which brings the following new features and changes.

  • lock device frequency on zoom option
  • keep waterfall history – the very great option, do not lose any rare signals
  •  advanced passband IQ recorder
  • passband IQ TCP server for remote processing, C/C++ client source examples included
  • advanced audio player, auto selectable sample rate, separate left/right channels
  • CTCSS decoder
  • markers import option convenient for merge markers 
  • Ctrl+Shift+Drag Up/Down – change spectrum magnitude offset
  • Ctrl+Shift+Mouse Wheel – change spectrum magnitude range (vertical zoom)
  • Ctrl+Mouse Hover – highlight nearest marker
  • Ctrl+Double Click– tune to highlighted nearest marker
  • band plan visualization, simple text format
  • frontend interface improvements
  • GUI improvements
  • spectrum and waterfall popup menus improvements
  • a lot of bug fixes
uSDR aka microSDR. A lightweight SDR receiver program from Windows.