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A Technical Overview of the Watch Duty Wildfire Monitoring Project Powered by...
Previously in 2022 we posted about Watch Duty, a nonprofit organization aiming to improve access to live public safety information regarding wildfires in California. Several populated regions of...
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Modifying a 2.4 GHz WiFi Grid Antenna for Improved 1.7 GHz Reception + DIY...
People have had much success in receiving L-band weather satellites like GOES and polar orbiting HRPT satellites using 2.4 GHz WiFi grid dishes, even though their 1.7 GHz signals are considered out of...
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TotalPower: Windows Program for Hydrogen Line Detection and Analysis with an...
Thank you to Mario A. Natali (I0NAA) who wrote in an wanted to share his Windows software called TotalPower which is designed for mapping the galactic Hydrogen line and works with RTL-SDR dongles. The...
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Crowd Supply Discovery Dish Teardown Session: Thursday 30 November Noon PST
Crowd Supply is hosting Teardown Session 38 on Thursday 3- November at Noon PST time which will feature the Discovery Dish. Join us for this livestream where I will be talking about and showing the...
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Tech Minds: Make your own Aircraft Tracking Antenna with RTL-SDR
Over on the Tech Minds YouTube channel Matt has posted a video tutorial that shows how to build a cheap quarter wave ground plane antenna tuned for 1090 MHz. This is the frequency of ADS-B (Automatic...
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A 3D Printed RTL-SDR Whip Antenna Mount
Thank you to Adrian for submitting to us his new 3D printed design that holds up a whip antenna connected to an RTL-SDR. Adrian writes: Telescopic antennas attached to RTL-SDR dongles tend to tip over....
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DATV-Red: An Interface for Controlling PlutoSDR in Node-RED
Thank you to Ohan Smit (ZS1SCI) for submitting news that he has published his software called DATV-Red over on GitHub. The software is open source and is design to be an interface for controlling a...
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Discovery Dish Updates and Some Cool Hi-Res Images
We have recently posted an update on our Discovery Dish crowd funding campaign over on Crowd Supply. Check it out on the update page, or on the repost down below. Discovery Dish Teardown Session...
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Downloading Stored Images and Data from the NOAA Weather Satellite GAC Broadcast
With polar orbiting weather satellite reception we as amateur ground station operators with SDR receivers typically download images via "Direct Broadcast", which provides imagery of what the satellite...
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Tech Minds: Making your own SDR Software With GNU Radio Companion
In his latest video out on YouTube, Matt from the Tech Minds channel gives us an overview of GNU Radio, and shows a few examples of how it can be used to receive, transmit and decode digital data. GNU...
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A Great Introductory Video to RTL-SDR
Over on YouTube user sn0ren has posted a well produced introductory video to RTL-SDR. If you're already familiar with software defined radios and RTL-SDR, this video won't be of any use to you, but if...
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A 3D Printed Enclosure for RTL-SDR Blog V3/V4 Units
Thank you to Dave D. for submitting his 3D printed enclosure for RTL-SDR Blog V3 and V4 units. The enclosure is designed to protect and support the dongle. It includes an optional hole for a heatsink...
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A WSPR Monitor Running on an old Android TV Box with OpenWebRX and RTL-SDR
Thank you to Joseph IT9YBG for writing in and sharing with us his experience in getting Armbian and OpenWebRX running with an RTl-SDR V3 smoothly on an old A95X Android TV Box. These TV Boxes have an...
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The Biggest RTL-SDR and Related Stories from 2023
This year there were several interesting stories and product releases that we posted about on the blog and this post will be a brief end of year review of some of our most popular posts. We also wanted...
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Tech Minds: A Beginners Guide to the HackRF and Portapack with Mayhem Firmware
In one of his latest videos Matt from the Tech Minds YouTube channel has created a beginners guide to the HackRF and Portapack with the Mayhem Firmware. The HackRF is a popular affordable software...
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RFNM End of December Update
The RFNM is an upcoming software defined radio that will have eight 12-bit ADCs, up to 612 MHz real time bandwidth, and two DACs for transmitting with up to 153 MHz bandwidth. The standard board will...
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Modified RTL-SDR Source for SDR++ with Manual Controls for R820T/2/R828D...
Over on GitHub user Sultan-papagani has just released a modified RTL-SDR source for SDR++ that enables full manual control of the gain stages, filters and other features on R820T/2/R828D tuner based...
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DJI DroneID Detection Running on the AntSDR E200 CPU
DJI is a major manufacturer of consumer drones and their drones implement an RF protocol called DroneID which is designed to transmit the position of the drone and operator to authorized entities such...
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SDU-X: Software Defined Data Transmission with Ultrasonic Transducers
Damian needed to get telemetry from his off-grid solar system 150 feet away, but didn't want to spin up another unreliable WiFi device. Instead he came up with a clever solution that involves using...
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Tech Minds: Testing the Jstvro Handheld Spectrum Analyzer
In one of his latest videos Matt from the Tech Minds YouTube channel tests out the "Jstvro" handheld spectrum analyzer which can be found on sites like Banggood and Aliexpress (the device is cheaper on...
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