OTA: Saving a Satellite, RAN Competition, 3D-Printed Foxhole Radios, and More

Dr. Danny Webster’s Wireless Masterclass series continues with a look at more advanced digital radio concepts and implementations including the detection and reduction of data loss The fourth in an ongoing series of presentations, Wireless Masterclass 4 follows on from the introductory video for those new to digital…
Sage Hansen's Foxhole Radio

WM4: Advance Digital Radio

The fourth instalment of the Wireless Masterclass series has been published to YouTube and this takes a look at advance digital radio, with Dr Danny Webster exploring topics including, detecting and reducing data loss, spread spectrum, OFDM and MIMO. If you missed the previous episodes these can be found at:…

OTA: LimeSDR Mini Demos, CubeSats, Discone Antennas, and More

The LimeSDR Mini crowdfunding campaign page continues to deliver impressive demonstrations of the device’s capabilities, including the creation of what is quite likely the world’s smallest Digital Video Broadcast (DVB) transmitter. The first demonstration, from Evariste Okcestbon, pairs a LimeSDR Mini with a Raspberry Pi Zero to broadcast…
Titan Missile Museum Discone Antenna

OTA: LimeSDR Mini on Android, Quantum Radio, 5G and More

QRadioLink developer Adrian Musceac has shown off how the LimeSDR Mini can be connected to a smartphone for on-the-go software-defined radio reception and transmission, in the latest demonstration update to the Crowd Supply campaign. Using the GNU Radio-based QRadioLink running on an Android smartphone, a USB battery pack,…
QRadioLink

OTA: RAN Competition, ScratchRadio Updates, a Ham Watch, and More

BT and Lime Microsystems have launched a competition for all LimeSDR, LimeSDR Mini, and LimeNET users: build a radio access project and pick yourselves up a LimeSDR with official aluminium case plus the potential to publish your creation in the LimeNET app store. Designed to encourage the development of…
Travis Goodspeed's GoodWatch

LimeSDR Made Simple Part 9: It’s a VNA Too

Welcome to the ninth episode in the LimeSDR Made Simple series. Since the first we’ve been gradually adding more tools to the SDR toolbox and if you have followed the series along, by now the operation of the LimeSDR should be well and truly demystified. Last time we looked…

OTA: LimeSDR Minis, Active Cooling, Sunny Interference, and More

Campaign backers eagerly awaiting their LimeSDR Mini boards have something to whet their appetite in the form of a demonstration using SDRangel, the open-source signal analyser and general-purpose transceiver application. In a video posted to the Crowd Supply campaign page and visible to all, Andrew Back demonstrates how Edouard…

WM #3: The Real Radio Link

The third instalment of the Wireless Masterclass series has now been published to YouTube and this takes a look at the real radio link, with Dr Danny Webster covering topics including the noise floor and line-of-sight link budgets, bad neighbours, and receiver and propagation effects on received signals. This is…

OTA: LimeSDR Mini v1.0, DVB UHD-1, RadFxSat, and More

Karl Woodward’s LimeSDR Made Simple series headed into its eight instalment this week with a look at how to program the LimeSDR from a Linux host. “Very early on in episode one we promised to work from SDR novice to API programming examples in small, bite sized chunks,” Karl…
LimeSDR Mini v1.0

LimeSDR Made Simple Part 8: C Examples and SoapySDR API

Welcome to the eighth instalment of the LimeSDR Made Simple series. Very early on in episode 1, we promised to work from SDR novice to API programming examples in small, bite sized chunks. Having done many of those steps it’s now time to take the final one and start programming.
LimeSDR Hacker Case

OTA: LimeSDR Mini Success, Biconic Dipoles, RadFxSat, and More

The LimeSDR Mini crowdfunding campaign has come to its close with almost three times its target raised, meaning production is now on-track for the first units to ship to backers by the end of the year. A post-campaign update from Andrew and the LimeSDR Mini team provides thanks…
LimeSDR Mini Basestation Demo

WM #2: The LimeSDR and LMS7002

The second video in the Wireless Masterclass series has been published to YouTube and in this Dr Danny Webster introduces the LimeSDR and takes a look at the LMS7002 FPRF architecture, covering the analogue and digital halves of the chip for both transmit and receive chains. The highly integrated…