Interesting Patents #1
We kick off our new series on interesting Radio and Wireless patents with this one from Amazon. With its focus on unmanned drone delivery, Amazon has created deployable beacons to …
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How to Make an EMF Detector
In part 1 of this article we talked about how an EMF meter works. In this article we’ll look at how to build one yourself. In this video, Collin shows …
How Does an EMF Meter Work?
In a previous post, we reviewed the best EMF meters. In this post we provide an overview of the main electronic building blocks in an EMF meter and how they …
The Best Sports Radar Gun in 2025
Looking for a sports radar gun? They’re great for coaches, players, and sports fans to measure speed. Our review looks at different radar guns to find the best ones. We’ll …
Displaying Weather Images in a Picture Frame with RTL-SDR
We came across a very interesting project by user ThePhotoChemist on Reddit. At the intersection of art and science, ThePhotoChemist has designed a system to receive and display weather satellite …