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Tech Minds: Demonstrating RTL_433 Running on ESP32 Devices
Earlier in the month we posted about how rtl_433 has been ported to ESP32 devices that are combined with CC1101 or SC127X transceiver chips, such as the low cost LILYGO LoRa 32 boards available on...
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SARCTRAC Mk3b: A $290 Satellite Antenna Rotator
In January we posted about the AntRunner, which is a $325 (incl. shipping) satellite antenna rotator shipped from China. Recently we've come across another low cost satellite rotator from Australia...
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Tech Minds: Testing an RTL-SDR Wideband Scanner with WebUI
Over on YouTube Matt from the Tech Minds YouTube channel has put up a video demonstrating an open source program released on GitHub called "RTL SDR Scanner", or "rtl-sdr-scanner-cpp". This program is...
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Job’s Radio Telescope Observes Maser W3(OH)
Over the past few years we've seen a lot of interesting observations coming from Job's Radio Telescope, which is Job Geheniau's 1.5m dish connected to an RTL-SDR (with additional filters and LNAs). He...
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SDRDue Updated: Passive Radar Software for RTL-SDRs
Thank you to Daniel Kaminski for writing in and sharing with us news that he has recently updated his SDRDue Passive Radar software for RTL-SDRs. The major update is that thanks to NVIDIA CUDA GPU...
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Hacking Beepers at a Fish & Chip Shop with an RTL-SDR and HackRF
Over on YouTube Paul from "Tall Paul Tech" has uploaded a video showing how he was able to reverse engineer the wireless protocol used by a simple restaurant beeper (aka 'burger pager') notification...
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Listening in on Hollywood Reality TV Show Wireless Microphones with an RTL-SDR
Over on Reddit user u/mknlsn has posted an interesting use for his RTL-SDR. He happens to live next door to a Hollywoood reality TV show production and was able to use his RTL-SDR to listen in on the...
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Visualizing RF Fields in Augmented Reality with a tinySA-Ultra or RTL-SDR and...
The tinySA-Ultra is an affordable handheld spectrum analyzer that can be purchased for around US$130 on Aliexpress and authorized resellers such as R&L Electronics in the USA. Recently on YouTube...
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Hunting for Space Radio Pirates on the US Military Fleet Satcom Satellites
In the 70's and 80's the US government launched a fleet of satellites called "FLTSATCOM", which were simple radio repeaters up in geostationary orbit. This allowed the US military to easily communicate...
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Open Source Close Call Monitor for RTL-SDR
Thank you to Fabian for writing in and sharing with us his newly released RTL-SDR close call monitoring software called "rtl-sdr-close-call-monitor". The software is open source and written in Python....
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An OpenWebRX fork with additional built in decoders
Thank you to Stefan for letting us know about a relatively modern OpenWebRX fork by luarvique that comes with additional built in decoders and features, such as SSTV, AIS, CW, RTTY, an MP3 recorder and...
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Receiving TPMS Tire Pressure Data from a Mazda CX 5 with an RTL-SDR
Over on YouTube Robert from the Robert Research Radios channel has uplaoded a video showing how he has been using an RTL-SDR and rtl_433 to measure his Mazda CX5's wireless tire pressure sensors. The...
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TXAdvance: An RF Transmitter Manager Android App that uses RTL-SDR
Recently we came across a new RTL-SDR app on the Google Play store called TXAdvance which appears to be designed for professional sound engineers working in TV/film/stage/music production industry. The...
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RSGB 2022: The UK Meteor Beacon Project
During last years Radio Society of Great Britain (RSGB) 2022 convention, Brian Coleman (G4NNS) presented a talk about the UK Meteor Beacon Project. The idea behind the project is to use a transmit...
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A Simulated Aircraft RADAR with Real Radar Scope Tube and ADS-B Data from an...
Over on YouTube we've found an interesting project by RingingResonance where he's created a simulated traditional radar scope using a real analog radar scope tube, and ADS-B data gathered from an...
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PySDR Guide on DOA & Beamforming
PySDR is a free online textbook created by Dr. Marc Lichtman which explains many digital signal processing (DSP) and software defined radio (SDR) concepts in a clear, concise and easy to understand...
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Guglielmo FM and DAB Receiver Software Updated to Version 0.5
Thank you to Marco, the programmer of Guglielmo for letting us know that his software has recently been updated to Version 0.5. Guglielmo is a Linux, Windows (and in this recent update x86 MacOS) based...
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A Portable RTL-SDR and Raspberry Pi Based ADS-B Alarm for Drone Pilots
Pilots of RC planes and drones need to be aware of the area they are flying in, to make sure that they stay well out of the path of manned aircraft. However, this can sometimes be difficult with...
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Combining ADS-B and VDL2 Data on PlanePlotter
Aircraft transmit multiple types of radio signals, including ADS-B and VDL2. ADS-B (Automatic Dependent Surveillance-Broadcast) is an air traffic surveillance technology that enables aircraft to...
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A Satellite Listening Journey
On his Medium.com blog, Mohsen Tahmasebi has posted an article about his journey into listening to satellites which started with his acquisition of an RTL-SDR Blog V3 dongle. The article begins by...
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