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Decoding DAB with an RTL-SDR and SDR-J On an Odroid C2
The Odroid C2 is a $40 USD single board computer with a 2 GHz ARM-A53 quad core CPU and 2GB of RAM. Compared to a Raspberry Pi 3 it is more powerful and costs almost the same. YouTube uploader radio...
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HDSDR Updated to Version 2.76
The popular HDSDR software has recently been updated to version 2.76. After a three year hiatus the HDSDR developers are back in action starting with the 2.75 update which was released in early...
View ArticleDrifting an RC Car with Computer Control and a HackRF
Over on Hackaday we’ve seen a post showing how HackRF experimenter Thomas was able to control his radio controlled car with a HackRF. With some simple control curves programmed in, he is then able to...
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Receiving GOES 16 Weather Satellite Images with the Open Satellite Project
Back in October/November of last year Lucas Teske showed us how to receive weather satellite images from the GOES line of geostationary satellites with an Airspy SDR (and possibly an RTL-SDR too), dish...
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Removing that Center Frequency DC Spike in Gnuradio the Easy Way
Recently RTL-SDR.com reader ghostop14 wrote in to us and wanted to share his GNU Radio block and tutorial that shows how to get rid of the DC spike in GNU Radio. The DC spike is the annoying spike in...
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A Tutorial on Using RTL-SDR with LabView: Creating a Simple FM Demodulator
LabView is a popular visual programming environment often used in industry and by engineers for test, automation and control applications. It is somewhat similar to GNU Radio in that programming is...
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RTL-SDR Waterfall on a C.H.I.P
The C.H.I.P is a $9 USD single board computer which is similar to a Raspberry Pi. It is powerful enough to run the RTL-SDR, and in fact the Outernet project use the C.H.I.P together with our V3 dongles...
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A Pre-Built Raspberry Pi Image for using an RTL-SDR as an APRS RX iGate
Keith Maton (G6NHU) wrote in and wanted to share his new ready to go APRS RX iGate image for the Raspberry Pi. APRS stands for “Amateur Packet Reporting System”, and is a type of packet radio...
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RTL-SDR.com Broadcast AM Block High Pass Filter Now for Sale
Back in October we released a broadcast FM bandstop filter for removing strong signals in the 88 – 108 MHz region. Today we’re releasing a new broadcast AM high pass filter (BCAM HPF) with a 2.6 MHz...
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Reverse Engineering Honeywell 345 MHz Home Automation Sensors with an RTL-SDR
OpenHAB is an open source home automation software program which is designed to interface and manage all the various sensors and systems in an automated house. One problem however, is that many...
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A Design for a Robust, Selective and Flexible RF Front-End for Wideband...
Recently Sivan Toledo wrote in wanting to share an academic paper he wrote together with Itamar Melamed, both from Tel-Aviv University in Israel. The freely available paper describes the design and...
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First Steps Towards Decoding HD Radio
Programmer Phil Burr wrote in and wanted to share his newest code which is a partial implementation (no audio) of the iBiquity IBOC HD Radio standard. HD Radio is a proprietary broadcast radio protocol...
View ArticleBuilding a DIY Carbon Fibre Yagi Antenna with 3D Printed Parts for 20€
Over on his blog author ‘Tysonpower’ has written about a DIY Carbon Fibre Yagi antenna that he’s built for only 20€. The antenna is very lightweight thanks to a 12mm diameter carbon fibre pipe which is...
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Scanning the Spectrum at 8GHz per Second with the new HackRF Update
Recently Mike Ossmann, creator of the HackRF released version 2017.02.1 of the libhackrf, hackrf-tools and firmware on the HackRF Git. The update was developed together with the help of Dominic Spill....
View ArticleA Visualization of Yearly Shortwave Activity with WebSDR
The WebSDR from the University of Twente, Netherlands is a wideband HF SDR that is accessible from all over the world via the internet. It was first activated in 2008 making it the very first WebSDR...
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A Review of the SDRplay RSP2 by DB Gain
Over on the Utility DXers file section at udxf.nl/ute-info.html, Mr. D.B. Gain has uploaded his latest review of the SDRplay RSP2 (pdf). The SDRplay RSP2 is the successor to the RSP1, and is a 12-bit...
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LimeSDR Unboxing and Initial Review
A few days ago we received our early bird LimeSDR unit from CrowdSupply. The LimeSDR is advertised as an RX/TX capable SDR with a 100 kHz – 3.8 GHz frequency range, 12-bit ADC and up to 80 MHz of...
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ADALM-PLUTO: A New $149 TX Capable SDR with 325 – 3800 MHz Range, 12-Bit ADC...
Recently we’ve heard about the ADALM-PLUTO (a.k.a PlutoSDR) which is an up and coming RX/TX capable SDR that covers 325 – 3800 MHz, has a 12-bit ADC and a 61.44 MSPS sampling rate. All this and it is...
View ArticleListening to February 2017 HAARP Experiments with an HF Capable SDR
This year at the end of February HAARP (High Frequency Active Auroral Research Program) scientists are planning to run several experiments that involve transmission. HAARP is a high power ionospheric...
View ArticleReverse Engineering Signals with the Universal Radio Hacker Software
Thanks to RTL-SDR.com reader M Kizan who notified us about a Python based digital signal reverse engineering software program called ‘Universal Radio Hacker’ which is developed by Johannes Pohl. The...
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