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Posts Tagged ‘RTL-SDR’

Building a better RTL-SDR TCXO

Tuesday, March 22nd, 2016

Craig posted an article describing how he built a 28.8MHz RTL-SDR TCXO, that is available on github: Here’s a scratch-built 28.8MHz TCXO capable of +-1ppm stability from 0C-55C; best of all, it’s not only easy to build, but is designed entirely from readily available and inexpensive components. For improved temperature...

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Posted in RF | No Comments »

Android flight tracker uses ADSB data from RTL-SDR

Monday, May 4th, 2015

Nikos has developed an Android app which works with the RTL-SDR dongle to demodulate the ADSB signal from aircraft and overlays the position of the aircraft on a high resolution offline map. So the user can use the App without Internet connectivity, on board an aircraft in real time! Nikos'...

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Posted in Android, SDR, software | No Comments »

YOUSDR remote RTL-SDR software

Monday, April 6th, 2015

Sixuniform has released YOUSDR v0.1 Alpha, an RTL-SDR webinterface for Raspian / Raspberry Pi. This is a web-wrapper for the rtl-sdr softwares. Currently it commands rtl_fm, rtl_tcp and dump1090. The software can be downloaded from its GitHub. The instructions on the GitHub page show how to set it up on...

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Posted in open source, RF, SDR, software | No Comments »

Chrome RTL-SDR receiver app updated

Sunday, January 11th, 2015

When it comes to the RTL-SDR dongle, there's an app for that! (At least a Chrome app.) The Chrome app store has the updated RTL-SDR Radio Receiver app available for download. It's free and open source and is written 100% in Javascript. "Receive and listen to FM and AM radio...

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Posted in code, open source, SDR, software | 6 Comments »

Viewing a VHS tape using RTL-SDR and TV Sharp software

Tuesday, November 18th, 2014

Here's a different and unconventional way to view a VHS tape (as if VHS tapes aren't considered unusual enough today). DogsRNiceMineCraft posted this video on YouTube showing video received using an RTL-SDR dongle. I got a VCR today and wanted to see if I could receive the signal from the...

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Posted in hacks, RF, SDR, software | 4 Comments »

Garage door signal hacking using RTL-SDR and TI Chronos watch

Saturday, July 5th, 2014

Students Ido Livneh and Gil Freidlin from Tel Aviv University have been experimenting with garage door opener signals using the TI Chronos watch and RTL-SDR dongle. Their technique involves using the SDR along with HDSDR software to acquire and record the signal, which is then analyzed using Python based tools...

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Posted in hacks, RF, SDR, wireless | No Comments »

Hak5 video: quadcopter with WiFi enabled Linux computer and RTL-SDR

Monday, April 21st, 2014

What happens when you send up a quadcopter equipped with a Linux box, WiFi and an RTL-SDR dongle? Darren and company from Hak5 decided to find out. Their project used the SDR to receive ADS-B signals from aircraft hundreds of miles away. The Hak5 team took a quadcopter up on...

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Posted in hacks, Linux, RF, SDR, wireless | 4 Comments »

RTL-SDR wide spectrum analyzer

Saturday, March 15th, 2014

Claudio Giuliani has designed an RTL-SDR based wide spectrum analyzer. The code is available on AlterVista. Software prerequisites are a Linux box (no Windows/OSX version) with Gnuradio and rtl_sdr utilities installed. The spectrum analyzer program is a frontend GUI of rtl_power for spectrum visualization and control and is coded in...

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Posted in code, open source, RF, SDR | 2 Comments »

RTLAMR: an RTL-SDR receiver for 900 MHz smart meters

Saturday, February 15th, 2014

It never ceases to amaze how many projects are developed making use of the RTL-SDR dongle. Bemasher has developed a software tool which interprets the signals in the 900 MHz ISM band sent from smart electric meters which are growing in popularity among utility companies. This project is a proof...

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Posted in digital radio data, hacks, SDR, wireless | 1 Comment »

RTL_FM_Python: An API and web interface for controlling RTL_FM

Thursday, February 6th, 2014

Here's an interesting piece of open source code known as RTL_FM_Python for controlling the RTL-SDR dongle. "This is a Python library built upon the RTL-SDR project and allows you to use the RTL-SDR dongle to tune in arbitrary stations either with a simple web application running on a built-in server,...

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Posted in open source, RF, SDR, software | No Comments »

30C3 video: Monitoring the Spectrum – Building Your Own Distributed RF Scanner Array

Monday, January 27th, 2014

At the recent 30C3 conference in Hamburg, Germany, Andrew Reiter outlined his efforts in using inexpensive RTL-SDR dongles to build a distributed RF scanner array for monitoring and spectrum mapping. Software-Defined Radio (SDR) has increased in popularity in recent years due to the decrease in hardware costs and increase in...

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Posted in hacks, RF, SDR, Videos | No Comments »

Sniffing and decoding NRF24L01+ and bluetooth LE packets for under $30

Wednesday, January 22nd, 2014

Omri writes: In this long post I am going to describe my journey to sniff and decode popular digital wireless protocols off the air for very cheap. So cheap practicality anyone can obtain the equipment quickly. I was able to decode NRF24L01+ and Bluetooth Low Energy protocols using RTL-SDR. As...

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Posted in tools, wireless | 6 Comments »

Improved digital voice P25 decoding with DSDPlus

Saturday, December 28th, 2013

We previously posted about the DSD digital decoding software and it's usefulness with the RTL-SDR dongle and other signal sources. Now there's a newly released version known as DSDPlus which promises to deliver improved decoding and clearer audio of unencrypted APCO Project 25 (P25) radio signals. This program is designed...

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Posted in digital radio data, SDR | No Comments »

Ham Radio Linux LiveDVD Ver. 14 supports RTL-SDR, HackRF and more

Monday, December 16th, 2013

Andy, amateur radio operator KB1OIQ, has released the Version 14 of his Ham Radio Linux LiveDVD containing programs focused on amateur radio and SDR operations. This is a remastered version of Ubuntu Linux. As of version 13, there are 32-bit and 64-bit versions available, as well as an image for...

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Posted in Linux, RF, SDR, software | 18 Comments »

Nooelec RTL-SDR giveaway at AmateurRadio.com

Friday, December 6th, 2013

AmateurRadio.com has teamed up with Nooelec.com to give away RTL-SDR packages to 10 hams. To be eligible to enter the competition, you must be a registered amateur radio operator, and you must comment on the competition page. The prizes are: Two (2) Complete HF sets including NESDR Mini receiver and...

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Posted in contest, SDR | 3 Comments »

Rtl_fm Guide: The long lost documentation

Monday, December 2nd, 2013

Kyle Keen has written up documentation on his Rtl_fm utility, which enhances RTL-SDR operation on older PCs. Rtl_fm is a little utility I wrote for the RTL-SDR project. The program was made to fill a gap in software defined radio: all the computers weaker than a Pentium 4. Basically, an...

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Posted in code, open source, RF, SDR | 1 Comment »

Decoding radio-controlled bus stop displays

Saturday, November 30th, 2013

Oona Räisänen (a/k/a Windytan) is a self-taught signals and electronics hacker from Helsinki, Finland, who is fascinated by mysteries, codes and ciphers, and vintage tech. She's previously written regarding the use of digital transmissions carried on FM broadcast subcarriers as a means of supplying data to digital information signs used...

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Posted in digital radio data, reversed, RF, SDR | No Comments »

RTL-SDR + SDR Radio + Funcube Sat

Thursday, November 28th, 2013

Amateur radio operator N4JTC has written a blog post about his experiences using the RTL-SDR dongle to receive the Funcube Satellite. With the recent record number of cubesat launches this month most Amateur Radio enthusiasts been busy, myself included. There hasn’t been a better time to get into receiving these...

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Posted in how-to, RF, SDR | 2 Comments »

Decoding FLEX pagers using RTL-SDR and Linux

Tuesday, November 26th, 2013

Superkuh2 demonstrates how to decode FLEX pager radio traffic. He uses gr-pager and zarya's implementation of it on the Linux platform with the RTL-SDR dongle. This script runs at a 250 KS/s sample rate and decodes one 12.5 KHz channel only. Internally it uses gnuradio's optfir to generate low pass...

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Posted in digital radio data, Linux, RF, SDR | 3 Comments »

R-Pi and RTL-SDR = AFSK transmission between two Linux boxes

Tuesday, November 19th, 2013

This video depicts the successful transmission of AFSK data via a radio link between two Linux machines using a R-Pi and an RTL-SDR dongle. The crew at Kprod posted this cool RTL-SDR project on their blog. They use minimodem to do the encoding in a FLAC or in a WAV...

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Posted in open source, R-Pi, RF, SDR | No Comments »

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  • Geert Jordaens: I'm not sure what kind of licensing I have to add since it is a fairly straight forward implementation of the adaptive Huffman Decoding. For...
  • erich: For anyone interested, I've added some c++ code for adaptive huffman decoding in the git repository.
  • Sjaak: I would add some more protection in the used trigger file (on the serverpilot site) then not using a standard name :) hopefully they use...
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