Hak5: Online RTL-SDR WebSDR’s with OpenWebRX
On this episode of Hak5 (a popular hacking and security themed YouTube channel) Darren and Shannon discuss OpenWebRX, a SDR web broadcasting and remote control tool that is compatible with the RTL-SDR....
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SvxLink Now Supports the RTL-SDR
SvxLink is an EchoLink and general purpose voice services system for controlling ham radio repeaters. A repeater is a radio tower that receives a weak transmission from a handheld or remote radio and...
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Receiving and acquiring GPS positions with an RTL-SDR dongle and GPS antenna
GPS experimenter and blog author e.p. has recently been posting about his experiments in which he uses an RTL-SDR dongle to receive GPS satellite signals and acquire a position lock. To receive GPS...
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Signal Direction Finding with an RTL-SDR, Raspberry Pi and REDHAWK
Something we missed posting about from last year was this presentation on “RasHAWK”, a direction finding system (pdf) built out of a Raspberry Pi, an RTL-SDR and four antennas on a 4 way switch running...
View ArticleDeocoding Orbcomm with MultiPSK 4.31 and an RTL-SDR
MultiPSK is a signals decoding program with many available decoders to choose from. It is also able to directly connect to the RTL-SDR, or be used via a virtual audio cable. The latest beta version...
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RTLSDR-Airband V2 Released
Back in June of 2014 we posted about the released of a new program called RTLSDR-Airband. RTLSDR-Airband is a Windows and Linux compatible command line tool that allows you to simultaneously monitor...
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CANFI: Cheap Automatic Noise Figure Indicator Updated to V2.7
Back in July 2014 we posted about the CANFI (Cheap Automatic Noise Figure Indicator) system. The CANFI system is a set of hardware components that include an RTL-SDR and a corresponding software...
View ArticleDSD+ Updated to Version 1.101
DSD+ (Digital Speech Decoder+) is a popular decoding tool that can be used to listen to P25, DMR and other unencrypted digital speech signals. Recently DSD+ has been updated from version 1.074 to...
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Building a NEST Thermostat with Arduino and an RTL-SDR
The Nest thermostat is a smart thermostat that learns your schedule and automatically adjusts the heat in your house for optimal energy savings. Tristan didn’t want to buy a Nest, but wanted to...
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JAERO Updated: Now supports 10.5k Aero-H and Aero-H+
The JAERO decoder for AERO signals on Inmarsat satellites has recently been updated to version 1.03. This new version supports the decoding of 10.5k Aero-H and Aero-H+ signals. The author of JAERO...
View ArticleReceiving AERO-H on L-Band with an RTL-SDR
Over on YouTube Adam Alicajic (9A4QV – creator of the LNA4ALL and upcoming MIX4ALL) has uploaded a video showing his reception of AERO-H signals from an Inmarsat satellite. A few days ago we posted...
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AISRec: Windows and Android AIS Decoder
Back in 2015 we posted about the free trial version of AISRec a few times, but we never really saw a full completed version get released. So far this year the full version is still not released, but...
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Collecting private flight data on the World Economic Forum Atendees with an...
Every year politicians and business men meet at the “World Economic Forum” in the small mountain town of Davos, Switzerland to discuss various topics and create business deals. This year Quartz, an...
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Decoding the LoRa IoT Protocol with an RTL-SDR
The internet of things is set to become the next big thing in technology. The IoT consists of multiple networked devices such as sensors and computers connected in various ways such as via wireless...
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Radio Astronomy with an RTL-SDR, Raspberry PI and Amazon AWS IoT
Recently amateur radio astronomer Mario Cannistrà wrote in and showed us a link to his project. Mario has been doing some interesting experiments with an RTL-SDR that involve receiving emissions...
View ArticleDecoding DMR on OSX using a RTL SDR and DSD Plus
DSD+ (Digital Speech Decoder+) is a popular Windows tool that can be used together with an RTL-SDR to decode digital speech signals such as P25 and DMR. There is unfortunately no version for OSX....
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Bypassing Rolling Code Systems – CodeGrabbing/RollJam
A while back we posted about Samy Kamkars popular “RollJam” device, which was a $32 home made device that was able to defeat rolling code based wireless security systems such as those used on modern...
View ArticleBroadcasting Analgoue NTSC TV with a $7 ESP8266
The ESP8266 is a $7 WiFi module that can be used to give any microcontroller access to a WiFi network. It is designed for creating Internet of Things (IoT) devices and has various features such as it’s...
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Using AIS Share, OpenCPN and an RTL-SDR on a Sailboat
AIS Share is an app for Android that allows you to turn an Android device into an AIS receiver by using an RTL-SDR. AIS stands for Automatic Identification System and is used by ships to broadcast...
View ArticleCreating an RF Proximity Alarm (Close Call) with an RTL-SDR
“Close Call” is a feature that some radio scanners have which notifies the user when there is a radio transmitter that is in the near vicinity (such as from a police radio). It works by detecting the...
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