OTA: New srsLTE, Lime Suite, LuaRadio, GQRX, SDR#, and More

The open-source srsLTE cellular communications suite has hit version 20.10, bringing new functionality including mobility functions and performance-enhancing PHY changes – and a range of bug-fixes, too. The srsLTE 20.10 release brings with it a new logging framework alongside initial NR PHY layer and stack components. The srsENB package receives…
GOES Imagery from USRadioGuy.com

OTA: High School RADAR, GSM Base Station on DragonOS, FM on the ISS, and More

Parkland High School student Victor Cai has presented work on a proof-of-concept short-range RADAR system, built around a LimeSDR Mini, at the GNU Radio Conference 2020 (GRCon20). Victor’s experimental system, presented with supporting paper during the virtual GRCon20 event, combines an off-the-shelf laptop running GNU Radio with a LimeSDR Mini…
Victor Cai

OTA: New Lime Suite Release, 16km Barefoot TV Transmissions, and More

Lime Suite v20.07.1 has officially launched, bringing a range of improvements to the LimeSDR-focused software bundle – including a fix for a bug which was causing quick tests of LimeSDR Mini boards to fail. In its latest release, Lime Suite v20.07.1 repairs a recently-discovered bug which would manifest as intermittent…

OTA: Hijacking Hostile Drones, LiFi Dev Kits, Custom LimeSDR Chassis and More

Vilnius Gediminas Technical University student Ugnius Buržinskis has released a video demonstrating a drone hijacking system, designed to prevent unauthorised uncrewed aerial vehicles (UAVs) from entering a restricted area, powered by a LimeSDR Mini. Using the LimeSDR Mini, housed in a protective casing and connected to an off-the-shelf laptop running…
Orson Maxwell's LimeSDR USB Case

OTA: Kimera Video Transmission, GNU Radio for Android, QO-100 QSO, and More

Community member Luigi Cruz has published a tool which is capable of encoding any video source, complete with hardware acceleration, and transmitting it over the airwaves using a LimeSDR. “Kimera can capture any camera connected to your computer, hardware encode it with any codec available (e.g. HEVC, AVC, AV1), and…
Luigi Cruz' Kinema

OTA: Portsdown LimeSDR USB Support, DragonOS and PiSDR Updated, and More

The British Amateur Television Club’s Portsdown digital TV transmitter project now supports the LimeSDR USB open software-defined radio, in addition to its earlier compatibility with the smaller LimeSDR Mini and all-in-one LimeNET Micro. Detailed over on the Lime Micro Community Hub, the Portsdown project offers radio amateurs an easy…
Portsdown on LimeSDR USB

OTA: DreamCatcher’s Lab Kit, LuaRadio 0.6.1, Antenna Simulation, and More

Technical training specialist DreamCatcher has launched a training course with LimeSDR-powered lab kit, designed to teach university-level students Long Term Evolution (LTE) network concepts. “The ME1130 serves as a ready-to-teach package for in-depth understanding and hands-on experience on LTE and LTE-Advanced technologies,” DreamCatcher explains of the hardware that backs the…
DreamCatcher Lab Kit

OTA: Lime Suite 20.01.0, cuSignal Acceleration, MIT’s RFocus, and More

The Lime Suite software bundle has received a significant update, to version 20.01.0, bundling new support for the LimeRFE software-defined front end, improved tuning and PLL locking, and other improvements. In its latest release, the open-source Lime Suite library comes with support for the LimeRFE front end, following on from…
MIT RFocus (Courtesy of Jason Dorfman/CSAIL)

OTA: PiSDR 3.0 brings LimeNET Micro Support, Satellite News, and More

Luigi Cruz has released version 3.0 of PiSDR, an SD Card image for the Raspberry Pi pre-loaded with software defined radio tools compatible with the LimeSDR – and, as of this latest release, the LimeNET Micro too. This latest release of Cruz’ PiSDR includes support for the Raspberry Pi 4…

OTA: QO-100 FreeDV Transmissions, Lime-Powered 5G Testbeds, O-RAN Code, and More

Lime Microsystems has published an interview with Gerhard Burian, David Rowe, and Steve Sampson on using FreeDV Mode 2020 for transmitting digital voice via the Es’Hail-2 satellite’s amateur radio transponder (QO-100) using just 1,600 Hz of radio frequency bandwidth. “The bandwidth regulation on the [QO-100] narrow band transponder, being 2,700…

OTA: LimeRFE Shipping Update, Signals Everywhere on the LimeSDR Mini, and More

The LimeRFE software-definable RF front-end has officially passed verification in its updated v1.0 revision form, with production of the backer boards on-track for a late-January shipping schedule. As detailed back in August, the LimeRFE board – which offers low-noise amplification, power amplification, and filtering under software control from the LimeSDR…
LimeRFE, in hand