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A Motorized Backyard Radio Astronomy Telescope made with an RTL-SDR
A Geostationary Satellite Imaged with the RTL-SDR Based Mini Radio Telescope Just a few days we posted an update on the PICTOR open source radio telescope project. That project makes use of an RTL-SDR...
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Creating a 21cm Galactic Sky Map with an Airspy and 1.8m Dish
Marcus Leech from ccera.ca is a pioneer in using low cost software defined radios for observing the sky with amateur radio telescopes. In the past he's shown us how to receive things like the hydrogen...
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ORBCOMM Receiver: New Open Source Software for Monitoring Orbcomm Satellites
Thank you to Frank for submitting his new RTL-SDR compatible Orbcomm Satellite monitor software called "Orbcomm Receiver". Orbcomm is a low earth orbit satellite communications system that operates in...
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Dash Mounted ADS-B With an RTL-SDR Blog V3
Reddit user [Bobcalamarie] recently [posted] about how he uses his car dash mounted Android tablet along with an RTL-SDR Blog V3 and a magnetic mount antenna while sitting in traffic to track aircraft...
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Measuring Traffic in a Neighborhood with KerberosSDR and Passive Radar
KerberosSDR is our four tuner coherent RTL-SDR product made in collaboration with Othernet. With KerberosSDR applications like radio direction finding and passive radar are possible, and our free open...
View ArticleVideo About Receiving The Othernet Satellite Data Service: Free APRS, News,...
The Othernet project aims to bring live data such as news, weather, video, books, Wikipedia articles and audio broadcasts to the world via cheap receivers and a free satellite service. Although an...
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QRUQSP – Receiving Weather Sensors via RTL-SDR and Sharing over APRS
Thank you to Andrew Rivett for writing in and sharing news about his project called "QRUQSP" which is aiming to provide an easy to set up system for allowing amateur radio operators to put weather...
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Using an RTL-SDR and Speech To Text to Create Alerts on Specific Phrases
Atlassian Opsgenie Engineer Fahri Yardımcı has recently written up an interesting post that details how he's using Opsgenie and Amazon Transcribe to automatically create alerts when specific voice...
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Creating An Automated Raspberry Pi and RTL-SDR Based NOAA Weather Satellite...
The nootropicdesign blog has recently uploaded a comprehensive tutorial showing how to create an automated NOAA Weather Satellite ground station using an RTL-SDR V3 and an Raspberry Pi 3. The project...
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cuSignal: Easy CUDA GPU Acceleration for SDR DSP and Other Applications
The RAPIDS cuSignal project is billed as an ecosystem that makes enabling CUDA GPU acceleration in Python easy. Scipy is a Python library that is filled with many useful digital signal processing (DSP)...
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TechMinds Reviews our RTL-SDR Blog L-Band Patch Antenna + Horn & Dish Mod
Over on YouTube the TechMinds YouTube channel has uploaded a review of our RTL-SDR Blog L-Band patch antenna which we recently released. TechMinds tests the antenna on a STD-C Inmarsat channel with the...
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Networked Radio Direction Finding with KerberosSDR and RDFMapper
We've just uploaded a short Python script to GitHub that allows radio direction bearings from a KerberosSDR to be used with the RDF Mapper software created by Jonathan Musther. RDF Mapper is a (~US$25)...
View ArticleCoole-Radar: A Retro Terminal Based Radar Display for ADS-B Aircraft Data
John Wiseman has been working on a cool old-school retro styled aircraft ADS-B radar that runs entirely within a terminal window. So no GUI desktop should be required. The project, called...
View ArticleDecoding Differential GPS (DGPS) with an RSPdx and MultiPSK
Over on YouTube the TechMinds channel has uploaded a new video about decoding Differential GPS (DGPS) using an SDRplay RSPdx SDR. DGPS is a terrestrially transmitted long wave signal that is used to...
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Solving a Frequency Hopping CTF Challenge with Aliasing
At this years BSides Ottawa security conference, Clayton Smith was tasked with setting up a wireless "Capture the Flag" (CTF) competition. CTF competitions generally consist of a mystery signal that...
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Passive Doppler Aircraft Scatter with a VOR Beacon and an RTL-SDR
Over on YouTube Meine Videokasetten has posted a video showing how he's been using an RTL-SDR to detect aircraft landing and taking off via the scatter on a VOR beacon. VOR (aka VHF Omnidirectional...
View ArticleBuilding a FossaSat-1 LoRa IoT Ground Station
FossaSat-1 is a recently launched open source "picosatellite" with an onboard LoRa repeater designed for Internet of Things (IoT) communications. It was launched via the Electron Rocket in New Zealand...
View ArticleTech Minds: LoRa Text Chat with Two Othernet Dreamcatcher Boards
Back in the middle of last year we posted about Othernet's Dreamcatcher hardware and the LoRa chat application. The Dreamcatcher is Othernet's receiver and computing platform that is designed for...
View ArticleExperimenting with an Ultrasonic Sensor Connected to an Airspy HF+
Software defined radios can have many more applications other than just radio. For example, it's possible to connect an ultrasonic sensor which outputs a waveform at some frequency above DC directly to...
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Radio Analyser: New Program for Plotting DSDPlus Statistics
Thank you to Matthew Cowley for submitting news about his new program called "Radio Analyser". Radio Analyser is a program that imports DSDPlus radio and group files into a postgresql database. The...
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