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Video Explaining the Basics of RF Bias Tees
Over on YouTube w2aew who has many excellent videos explaining various radio topics has uploaded a new video that talks about the basics of bias tees, and shows some applications and examples. In the...
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Tracking Police and Military Aircraft at the G7 Summit with an RTL-SDR
Back in early 2016 we posted about a journalist who used an RTL-SDR to gather ADS-B data about the type of aircraft used at the world economic forum in Davos. The idea was to help highlight the vast...
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Building A Giant $200 3D Corner Reflector Antenna for GOES, Moon Bounce and...
A corner reflector antenna is basically a monopole antenna with a metallic 'corner' reflector placed behind it. The reflector helps the monopole collect signals over a wider aperture resulting in...
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Artificial Intelligence Radio – Transceiver Now Released for Crowdfunding
Last week we posted about the Artificial Intelligence Radio - Transceiver (AIR-T), which was awaiting release for crowdfunding. Today the Crowd Supply campaign for it has gone live. As expected, the...
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Locating Various HF Transmitters and Number Stations with KiwiSDRs
If you weren't already aware, the KiwiSDR is a US$299 HF SDR that can monitor the entire 0 - 30 MHz band at once. It is designed to be web-based and shared, meaning that the KiwiSDR owner, or anyone...
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Using an SDRplay RSP2 to Measure IMD
Over on YouTube channel Rate My Radio has uploaded a set of three videos showing how to use an SDRplay RSP2 as a low cost spectrum analyzer to measure the inter modulation distortion (IMD) performance...
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Outernet Dreamcatcher 3 Sale $99 for the Full Kit + Testing the LoRA Chat...
The Dreamcatcher v3.0 is Outernet's latest revision of their satellite receiver hardware. The freely available Outernet ku-band satellite service aims to keep us up to date with the latest news,...
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New RTL-SDR Frequency Heatmap Generator Plugin for SDR#
Thanks to VE3NEA for letting us know about his new RTL-SDR compatible heatmap generator plugin for SDR#. To use the plugin you first need to generate some heatmap CSV data by using the rtl_power...
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The Outernet Ku-Band LoRa Data Service
As mentioned in our previous post about the Outernet LoRa chat application, Outernet is currently holding a 33% off sale on their 'Dreamcatcher' satellite data receiver. To get the discount use the...
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Video on Hacking 433 MHz Devices with an RTL-SDR and Raspberry Pi
Over on YouTube user Andreas Spiess has uploaded a video showing how to use an RTL-SDR to reverse engineer 433 MHz ISM band devices such as Internet of Things (IoT)/home automation sensors and...
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Noise Cancellation using Linrad and the Phase Coherent Capabilities of an RSPduo
The RSPduo is the latest product from SDRplay, and it's main defining feature is it's dual RX channels. The two channels allow you to simultaneously listen to two stations that may be at opposite ends...
View ArticleNew GNU Radio Block for Decoding Meteor M2 Images
Thank you to Reiichiro Nakano for submitting news about his work on converting the Pascal based meteor_decoder software into a C++ GNU Radio block. meteor_decoder is a decoder for the Meteor M2 weather...
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Exposing Hospital Pager Privacy Breaches
It has been a known open secret that for years many hospitals have been transmitting sensitive patient data over the air completely unencrypted via their pager network. With a simple ultra cheap radio...
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KiwiSDR TDoA Direction Finding Now Freely Available for Public Use
A few weeks ago we posted about some experimental work going on with Time Difference of Arrival (TDoA) direction finding techniques on KiwiSDR units. The idea is that public KiwiSDRs distributed around...
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Testing out the New Airspy HF+ Preselector
The Airspy team have recently been working on a preselector retrofit product for their HF+. The Airspy HF+ already has excellent dynamic range and sensitivity, but by adding a preselector they seek to...
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New TETRA Trunk Tracker for use with SDR# and the TETRA Demodulator Plugin
Over on our forums user thewraith2008 has just released news about his new software called TETRA Trunk Tracker. The software works in conjunction with the TETRA demodulator plugin for SDR#. It works by...
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RS41 RadioSonde Tracking Software
A radiosonde is a small weather sensor package that is typically attached to a weather balloon. As it rises into the atmosphere it measures parameters such as temperature, humidity, pressure, GPS...
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New Alternative WxToImg Website with Most Files
Last month we posted that the website for the popular NOAA APT weather satellite decoding software known as WxtoImg went down. Since then we've been in contact with the developer of the software, and...
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Cloned SDRPlay and Airspy Units Now Appearing on Aliexpress/eBay
Recently we've found that there are now cloned units of SDRplay RSP1 and Airspy R2 units appearing on Aliexpress and eBay. (We won't link them here to avoid improving the Google ranking of the clone...
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New Store Products: SDRplay RSP1A Metal Case Upgrade + Portable Antenna Set
Over on our store we've just released two new products for sale. The first is a metal case upgrade kit for the SDRplay RSP1A. It is similar to the previous enclosure that we sold for the RSP1, but no...
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