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Posts Tagged ‘SDR’

SDR radio breathes life into a 75 year old Marconi CR100

Thursday, January 19th, 2017

  Jon Hudson over at DesignSpark‎ writes: This is a belated post of a fun project we did for RS Components. With the upcoming 80th anniversary of the founding of 'RadioSpares' - the original name for UK-based RS-Components, and the creation of an "Engineers' Playground" as a feature of the...

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Posted in SDR | No Comments »

Software Defined Radio IC Decap: R820/RTL2832U

Monday, December 26th, 2016

Software Defined Radio teardown: R820/RTL2832U Decap Recently there has been much interest in two integrated circuit which were originally designed to receive FM radio and DVB-T TV (as used in Europe). Some enterprising people quickly realised that since they were based on software-defined techniques they could be quickly re purposed...

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Posted in Teardowns | No Comments »

Measuring SDR noise figure

Friday, March 11th, 2016

David has written an article on measuring SDR noise figure: One number I wanted to know was the Noise Figure (NF) of the SDR. Mark has a bunch of SDRs so we got on a roll and checked out the NF on all of them. Now there are a lot of...

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Posted in how-to, SDR | No Comments »

Announcing the STREAM board

Monday, March 30th, 2015

The Myriad crew  has announced the new Stream board released through the MyriadRF initiative for doing SDR with the LMS6002D/LMS7002M from Lime Microsystems. It's a fully Open Source board with Kicad design files and a fully Open Source OpenRISC SoC for the FPGA: We are thrilled to announce that the STREAM...

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Posted in FPGA, open source, SDR | No Comments »

Teensy SDR project

Monday, February 9th, 2015

rheslip made this Teensy SDR project, that is available at Github: I managed to get the Teensy SDR in an enclosure over the Christmas holidays - now its starting to look like a radio! The enclosure is a plastic Hammond. Front and rear panels are PCB material and I added...

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Posted in Arduino, software | No Comments »

Intro to Software Defined Radio (SDR) using cheap TV tuner dongles

Monday, October 21st, 2013

If you see posts relating to USB dongle SDR's and wonder what everyone's talking about, this video is for you. In this presentation from last weekend's Hack3rCon 4 conference in Charleston, WV, Justin Rogosky covers the basics relating to using the familiar RTL-SDR TV tuner dongles to monitor obscure portions...

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Posted in RF, SDR, Videos | No Comments »

Decoding P25 with SDR#, DSD, and RTLSDR

Wednesday, June 6th, 2012

This is another illustration of the amazing utility of the RTL-SDR and SDR# software. Here proct0r links the output from SDR# to a program known as DSD. DSD is an open source command line program originally coded in C by anonymous for Linux for the purpose of decoding digital protocols...

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Posted in digital radio data, open source, RF, SDR | 6 Comments »

SDR#: C#-based SDR app

Friday, May 25th, 2012

Here's a new open source Windows SDR application. According to the developers, "SDR# (read SDR Sharp) is a simple, intuitive, small and fast PC-based DSP application for Software Defined Radio. It’s written in C# with both object design correctness and performance in mind. The main purpose is to offer a...

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Posted in open source, RF, SDR | 3 Comments »

DCC 2011: FUNCube project development

Saturday, April 7th, 2012

The FUNcube Dongle is a SDR receiver on a USB dongle which currently sells for $125 GPB. It uses the same E4000 tuner found in the $20 RTL-SDR dongle we've posted about previously. The developer is Howard Long, G6VLB, who chronicled the FUNCube's development in the above video from the...

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Posted in project logs, RF, SDR, talks | 13 Comments »

Introducing RTL-SDR: a $20 SDR

Tuesday, March 20th, 2012

If you don't want to spend $1,200+ for a USRP SDR to use GNU Radio the crew at OsmoSDR want to help. In addition to their other amazing work, Osmocom team members (notably Steve Markgraf) have been hacking away on an alternative least-cost solution they call rtl-sdr. So what is...

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Posted in Development, open source, RF | 50 Comments »

2011 DCC – Practical Software Radio

Saturday, March 3rd, 2012

This talk is from the 2011 Digital Communications Conference (DCC) held last September in Baltimore, MD. The speaker is Matt Ettus who heads up Ettus Research, manufacturers of the USRP family of SDRs. His talk is an in depth technical explanation of "Why Things Don't Always Match the Textbooks" in...

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Posted in open source, RF, talks | 1 Comment »

NBW-SDR: NBitWonder software defined radio

Wednesday, December 14th, 2011

[embed]http://www.youtube.com/watch?v=dWnyZbn06qw[/embed] NBitWonder writes: Over at NBitWonder, we have been working to develop a software-defined radio for a few months. Last weekend, the radio received its very first signals. There is a short writeup and demonstration video at our website. This is quite similar to Jeri Ellsworth's design in that is...

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Posted in CPLD, demonstrations, open source, RF | 7 Comments »

Ruxcon 2011: Hacking the wireless world with SDR

Saturday, November 26th, 2011

[embed]http://www.youtube.com/watch?v=Vn-dpUegUDQ[/embed] Software engineer and perpetural hacker Balint Seeber presented this talk at the Ruxcon 2011 conference held November 19-20, 2011 in Melbourne, AU. Balint presents those unfamiliar with SDR with the basics of the hardware and software you'll need and highlights what's out there in the lesser known areas of...

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Posted in hacks, RF, talks | No Comments »

Matchstiq SDR transceiver

Monday, November 21st, 2011

Drone writes to inform us of a new SDR:Here is an interesting new handheld SDR transceiver called Matchstiq from Epiq solutions. 300MHz to 3.8GHz. I sure would like to know how they're implementing the configurable suboctave RF filters. There is on-board CPU, DSP, and Xilinx Spartan FPGA. Noise figure at...

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Posted in digital radio data, RF, software | No Comments »

SDR Sunday – monitor web SDRs and decode digital data

Sunday, September 4th, 2011

Want to try out software defined radio (SDR) before you buy or build a rig? Or do you just want to see what all the ham radio chatters about? Then check out the online SDRs available for your listening pleasure at WebSDR. This unique website lists dozens of online radios...

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Posted in digital radio data, open source, RF, site, software | No Comments »

RHINO

Wednesday, August 17th, 2011

The University of Cape Town in South Africa is developing an open source SDR project known as RHINO, which stands for Reconfigurable Hardware Interface for computiNg and radiO. Reconfigurable Computing is an attractive computational technology, allowing an almost limitless set of possible solutions to any particular problem. It does this...

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Posted in RF | 13 Comments »

Video: DSP/SDR basics

Monday, July 25th, 2011

Here's Jeri Ellsworth's latest video, explaining the basics of DSP and SDR for beginners, and how to build a digital direct conversion receiver (SDR) using sampling detectors and FPGA DSP processing. (If you want to skip the silly cat portion of the video, start at 1:25.) The links referred to...

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Posted in digital radio data, DIY, RF | 2 Comments »

USRP 101: unlocking wireless PC locks (and freeing dolphins)

Friday, July 22nd, 2011

We've been interested in the Universal Software Radio Peripheral (USRP) SDR and the associated open source GNU Radio software for some time, but the $1500+ cost has kept the project on the back burner. Nevertheless, we always like a good story about RF hacking with the USRP. Corey and Max...

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Posted in hacks, RF, security | No Comments »

Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please