OTA: LimeSDR in Space, 4G on the Moon, and More

Aricebo Radio Observatory

The European Space Agency (ESA) has announced a joint project with Lime Microsystems which will see the LimeSDR family of software defined radios used to develop new and innovative satellite communications systems both on ground and in space. “With modern satellite communications, many design challenges are unique, requiring testing and experimentation to reveal what does…

Read more

OTA: LimeSDR GPIO, Mini Give-away, SpaceX Sats and More

The LimeSDR General-Purpose Input/Output (GPIO) Board, designed to make it easier to interface the LimeSDR with external hardware, is beginning its journeys to backers following a minor delay in the assembly process. Designed to expand the LimeSDR’s capabilities, the GPIO Board provides individually-configurable bi-directional level-shifted input/output pins for the GPIO pins 0 through 7 inclusive…

Read more

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

Sage Hansen's Foxhole Radio

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 radio, an in-depth look at the LimeSDR…

Read more

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: WM #1: What is Digital…

Read more

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

Titan Missile Museum Discone Antenna

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 footage from a Raspberry Pi Camera Module…

Read more

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

QRadioLink

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, and a USB On-The-Go (OTG) adaptor cable,…

Read more

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

Travis Goodspeed's GoodWatch

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 software-defined radio access applications – cellular…

Read more

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 at C code and how to…

Read more

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 Griffiths’ popular SDRangel software is capable…

Read more

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 highly recommended viewing for anyone…

Read more