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…

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

LimeSDR Mini v1.0

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 explains of the series. “Having done…

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LimeSDR Made Simple Part 8: C Examples and SoapySDR API

LimeSDR Hacker Case

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. For those who have read…

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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 and incredibly flexible LMS7002 is at…

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LimeSDR Made Simple Part 7: More Than One Way – Continued

Receiving and transmitting ASK/OOK signals in GNU Radio Welcome to the seventh instalment of LimeSDR Made Simple. In this post we pick up where we left off in the previous, trying to mimic the simplest of radio devices. In the last instalment we got to a point where we could receive the bit stream, but…

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OTA: Masterclass Videos, RFI, C-Band Reuse and More

LimeSDR Mini on a LattePanda

If you’re looking for an in-depth deep dive into digital radio and the inner workings of the LMS7002M and LimeSDR you’ll want to look out for Dr. Danny Webster’s Wireless Masterclass series, the first of which has been uploaded to YouTube. Based on presentations from the LimeSDR Workshop held back in March in partnership with…

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Wireless Masterclass Video Series

Back in March we hosted a 1-day LimeSDR workshop in London, in partnership with the BCS Open Source Specialist Group and Open Source Hardware User Group. For this Principle RF Design Engineer at Lime Micro, Dr Danny Webster, put together a series of presentations that provide an introduction to digital radio concepts, before moving on…

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OTA: New LimeSDR Accessories, LattePanda Experiments, and More

LimeSDR Hacker Case

The LimeSDR Mini crowdfunding campaign, launched earlier this month, is off to a flying start and is already over 130 percent funded with over 30 days still left on the clock – and now includes support for an external clock source. Designed to be fully compatible with the LimeSDR ecosystem but in a smaller, more…

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LimeSDR Made Simple Part 6: More Than One Way…

Receiving ASK/OOK signals in Pothos and GNU Radio. Welcome to the sixth instalment of LimeSDR Made Simple. Last time we looked at transmitting and receiving ASK (amplitude shift keying) signals in Octave. However, we mostly glossed over the modulation and techniques involved. In the next post(s) we will look at both receiving and transmitting single…

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OTA: LimeSDR Mini, GNU Octave, SDR on a Watch and More

LimeSDR Mini (Render)

Lime Microsystems has officially opened a crowdfunding campaign for the LimeSDR Mini, a reduced-size and reduced-cost version of the LimeSDR which offers one TX and one RX channel for just $99 for Early Bird backers and $139 thereafter. Taking place on Crowd Supply over the next month – the same platform used to launch the…

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