OTA: LoRa Testing, Homebrew Antennas, Reactor Monitoring, and More

Acoustic Communications at Argonne National Laboratory

Engineer Mark Zachmann has posted of his work using the LimeSDR Mini to test low-power long-range LoRa radios, as part of an Internet of Things (IoT) project. “I’m working on a LoRa system at 915MHz. LoRa is a frequency modulation method used on low power IOT devices. Being able to see spectral lines, decipher messages…

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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…

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Over The Air: ERASynth, Pothos 0.5.0, Hackaday Prize-Winning Cellular Repeater, 3D Printed LimeSDR Case, MATLAB ADS-B Tutorial, and Disney’s Backscatter Research

ERASynth

If you’re looking to pick up a signal generator for your next project or experiment, ERA Instruments is currently looking to raise funds for production of the ERASynth open-hardware 250KHz-15GHz signal generator. Designed to appeal to everyone from hackers and students to professors and professional engineers, the ERASynth’s specifications are undeniably impressive: the entry-level ERASynth…

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Over The Air: pyLMS7002M Update, LimeSDR breaks $1M, OpenCL GNU Radio Acceleration, Smart TV and Siren Attacks, Wi-FAR Testing, an HF Preselector, and a Radio Museum

Siren (image courtesy Ben Franske, CC-BY-SA 4.0 International)

The LMS7002M Python package (pyLMS7002M) has received a major update this week allowing its use via the LimeAPI, meaning it’s now possible to use its examples, including the Vector Network Analyser (VNA), without causing conflicts with other Windows drivers. The pyLMS7002M package includes a range of example projects, the most intriguing of which is an…

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Over The Air: Bluetooth 5, Lime Suite Updates, CBRS, and an SDR Tuning Knob

Bluetooth 5 Engineer (Courtesy Bluetooth SIG)

Over The Air is our fortnightly round-up bringing you the latest on topics of interest to the software defined radio community, as curated by technology journalist Gareth Halfacree. The Bluetooth Special Interest Group (SIG) has formally launched the Bluetooth 5 standard, with the promise that the first products featuring updated radios will hit the market…

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