Over The Air – Page 3

OTA: LimeSDR’s Part in the UK’s Open RAN Plans, an Open-Source ARDF Controller, a “Widowmaker” Radio, and More

The UK government has announced a target of carrying 35 per cent of all cellular traffic over open radio access networks (open RANs) by 2030, alongside the planned retirement of 2G and 3G cellular – and LimeSDR technology has been selected for two key test-bed projects. “The mobile network operators…

OTA: Delivery Updates, LimeSDR on a Phone, a New CubeSat, LoRa Moonbounce and More

Lime Micro products, including the LimeSDR family, are still being impacted by global component shortages and supply chain disruption – but Lime’s Ebrahim Bushehri has detailed how the company is working to overcome the issues. “While we’ve placed our orders and hope the supply chain settles down soon, we’re not…

OTA: Bluetooth Tracking, Ethernet Sniffing, pySim Bug Fixes, and More

Researchers from the University of California at San Diego (UC San Diego) have published a paper highlighting location-tracking attacks against mobile devices which leverage fingerprinting of Bluetooth Low Energy (BLE) physical layer attributes. “Mobile devices increasingly function as wireless tracking beacons. Using the Bluetooth Low Energy (BLE) protocol, mobile devices…

OTA: The EC Praises MyriadRF, FutureSDR Gets its First Blocks, Counting Crowds Through Walls, and More

MyriadRF has been highlighted by the European Commission as an exemplar of how open source software and hardware can provide what its report describes as a clear “public good. In a report into the impact of open source software and hardware on the European economy, the European Commission’s Directorate-General for…

OTA: SDR++ Hits v1.0.0, Bluetooth Hits 5.3, Elektro-L3 Goes LRIT, and More

Alexandre Rouma’s SDR++ project, a cross-platform open-source package for software defined radio work with built-in support for LimeSDR-family hardware, has hit a milestone: the release of version 1.0.0. “For those who don’t know,” Alexandre explains, “SDR++ is a cross-platform (Windows, Linux, MacOS, BSD) and open-source general purpose receiver software meant…

OTA: New LimeNET Gets AMD Ryzen Power, uSDR Launched, Open RAN Competition, and More

Lime Microsystems has announced a new version of its LimeSDR-powered LimeNET 5G-capable software-defined radio-network-in-a-box – now featuring a 16-core high-performance AMD Ryzen processor. “We are excited to collaborate with Lime Microsystems and the LimeNET ecosystem,” said AMD’s senior director of applications engineering Kun-Yip Liu of the project, “to enable innovative…

OTA: OpenBSC Setup Scripts, 80MSPS from a LimeSDR Mini, a Satellite Hunt, and More

Community member Bastien Baranoff has shared scripts for getting a Raspberry Pi system running Ubuntu Server up-and-running as an open cellular base station with Osmocom’s OpenBSC and a LimeSDR. Designed for Raspberry Pi systems running Canonical’s free and open source Ubuntu Server Linux distribution, Bastien’s scripts begin by installing the…

OTA: LimeRFE Shipping Begins, LibreCellular Launches, OpenWifi, and More

Lime Micro has announced that the first batch of LimeRFE boards has now been shipped to Crowd Supply, with all backers’ orders expected to be fulfilled by the end of June. Designed to bring the same flexibility as the LimeSDR range to the radio-frequency front-end field, the programmable LimeRFE promises…

OTA: LimeSDR as a Noise Source Filter, AMSAT GOLF-TEE, Wearable Antennas, and More

Radio amateur Rob Swinbank has written of a project to help filter out an annoying 6m noise source, using a LimeSDR board and GNU Radio to remove the noise and provide a cleaner signal. “Got a another small Yagi pointing at my 6m noise source and can now cancel it…

OTA: LimeNET CrowdCell Shared Access Demo, LimeRFE Update, SDR Benchmarks, and More

Lime Microsystems has published a video demonstrating how the LimeSDR-powered LimeNET CrowdCell can ease the provision of private and community Long Term Evolution (LTE) networks – including using the system’s general-purpose compute to run edge workloads. “As of late 2019 anyone in the UK can obtain a licence from Ofcom…

OTA: Kalibrate for LimeSDR, LimeRFE Assembly, Magma Goes Linux, and More

A fork of the Kalibrate project is now available for LimeSDR users looking for improved frequency accuracy without the need for a signal generator or spectrum analyser, thanks to the work of developer Supreeth Herle. Originally designed for receive-only software defined radios, the forked Kalibrate – known as Kalibrate-LMS –…

OTA: LimeSDR External TCXO Board, Hardware Accelerated Video, and More

Satellite communications engineer Phil Crump has published an open-source design for an external TCXO frequency reference board for the LimeSDR Mini and other devices in the LimeSDR family. “This PCB provides an external, thermally separate, TCXO Frequency Reference to the LimeSDR Mini board,” Phil explains of the project. “I built…