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Using the Airspy HF+ as a Power Meter By Calibrating it with a Resistor
Over on YouTube, Leif (SM5BSZ) has uploaded a video where he shows how the Airspy HF+ can be used as an accurate power meter for RF signals. Leif notes that if the noise figure (NF) or minimum...
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PLSDR: A Python Based SDR App with RTL-SDR Support
Programmer P. Lutus has recently released a new Python based software defined radio application that he calls "PLSDR". PLSDR is a full receiver, with spectrum and waterfall displays, a frequency...
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RTL_TCP SDR: iOS Software Defined Radio App with Spectrum Display
In the post a few days ago about the newly released "SDR Receiver" app for iOS, we briefly mentioned that another iOS app called "RTL_TCP SDR" has just been released out of beta and put onto the Apple...
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An Osmo-FL2K Broadcast AM Band Frequency Marker Generator
Over on Hackaday.io Ted Yapo has written about his frequency marker generator which uses Osmo-FL2K. Osmo-FL2K is a recently released hack that allows cheap $5 - $15 USB 3.0 to VGA adapters to be used...
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An Enhanced Version of Freqshow for Raspberry Pi’s with Touch Screens
The Freqshow software is an RTL-SDR compatible tool for Raspberry Pi devices that can render live spectrum and waterfall displays. It is designed to run on portable touchscreens that plug into the...
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Fixing Factory Defective FL2K Dongles
If you've recently purchased an FL2K-SDR to use as a cheap osmo-fl2k transmitter and found that it only works on USB 2.0 ports, or at very slow sample rates, then you may have received a defective...
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Reading Household Wireless Utility Meters with an RTL-SDR and Plotting the...
Over on YouTube Debashish Sahu has uploaded a video showing how he uses an RTL-SDR to capture and decode consumption data from his home electric/gas/water utility meters. He uses the rtl_amr software...
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SDRSharp Users Guide
This is an excerpt from our book on RTL-SDR which we've decided to post given that many new users struggle to understand all the settings in SDR#. SDR# is currently the most popular SDR program used...
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New SDR# Plugin Manager and Colorizer Available
SDR# plugin developer Eddie Mac has again released a new plugin for SDR# called "SDR# Plugin Manager". This plugin is designed to make it easy to install, remove and re-order other SDR# plugins. Also...
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A Review of the miniVNA Pro Vector Network Analyzer
Over on YouTube Kevin Loughin has reviewed the miniVNA Pro Vector Network Analyzer (VNA). A VNA is a tool that can be used to measure antenna or coax parameters such as SWR, impedance, loss as well as...
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Demonstrating Two Channel Coherent Spatial Filtering In a GNU Radio Simulation
Over on YouTube VE6EY has uploaded a video that demonstrates spatial filtering (aka beamforming) working in a GNU Radio simulation. This is a technique that can be used with a 2-channel coherent SDR...
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Video Comparing the RSP-1A Against the Airspy HF+, and Testing out the Airspy...
Over on YouTube icholakov has uploaded two new comparison videos. The first compares the Airspy HF+ against an RSP-1A on HF signals with a W6LVP receive loop antenna in a noisy suburban backyard in...
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Detecting GPS Jammers In Augmented Reality
The NT1065 is an all-in-one 4-channel global navigation satellite system (GNSS) receiver chip. It is highly versatile and can receive and decode multiple navigation satellites such as GPS, GLONASS,...
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Building A Low Cost GOES Weather Satellite Receiver with an RTL-SDR
Over on Twitter and his github.io page, Pieter Noordhuis (@pnoordhuis) has shared details about his low cost RTL-SDR based GOES satellite receiving setup. GOES 15/16/17 are geosynchronous weather...
View ArticleWarning: Stolen SDRplay RSP-1A’s on eBay will not Function Properly
SDRplay have recently released a PSA noting that a consignment of RSP-1A's was stolen from their manufacturing partner. This is important as SDRplay have decided to blacklist the serial numbers from...
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Hacker Warehouse Demonstrates Pager Decoding with an RTL-SDR
Over on YouTube the web show Hacker Warehouse have created a video explaining wireless pagers and how RTL-SDRs can be used to sniff them. In the video host Troy Brown starts by explaining what pagers...
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Outernet’s Old Antenna Stock for Sale: L-Band Active and Filtered Ceramic...
In the past the Outernet project operated on L-band frequencies, and for the service they manufactured a number of active L-band active ceramic patch antennas for use with RTL-SDR dongles. Outernet has...
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SDR# TETRA Decoder Plugin Updated
The TETRA plugin for SDR# has been updated a few times since our last post on it back in March. The latest version can be downloaded directly here, and the original link comes from the Russian scanner...
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Monitoring FT8, JT65, JT9 on Multiple Bands with Low Cost Single Board PCs
Thank you to Michael (dg0opk) who wrote in and wanted to share details of his full SDR monitoring system for weak signal HF modes. His setup consists of nine ARM mini PCs (such as Banana Pi's,...
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SDRplay Release a Dual Tuner SDR called RSPduo
The RSPduo SDRplay have released a new product at this years Hamvention called the "RSPduo". The product uses the same technology as their previous RSP models, but this time includes a phase-coherent...
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