Collaborate Disseminate
If you run a large meteorology bureau, then you probably have access to a wonderful weather radar for scrying the heavens. The rest of us aren’t so lucky. If you …read more Continue reading Building a Portable Weather Radar
An Iranian-linked hacker group called Handala claimed to have hit Israeli military targets with massive cyberattacks on Sunday,… Continue reading Handala Claims Israeli Radar Hack, But Evidence Shows Phone Admin Panel
It is an old trope in submarine movies. A sonar operator strains to hear things in the ocean but dares not “ping” for fear of giving away the boat’s location. …read more Continue reading Passive Radar Explained
The basic principle of radar systems is simple enough: send a radio signal out, and measure the time it takes for a reflection to return. Given the abundant sources of …read more Continue reading Using a Scientific Satellite for Passive Radar
Phased-array radars are great for all sorts of things, whether you’re doing advanced radio research or piloting a fifth-generation combat aircraft. They’re also typically very expensive. [Nawfal] hopes to make …read more Continue reading Open Source Radar Has Up To 20 KM Range
For as long as small, hidden radio transmitters have existed, people have wanted a technology to detect them. One of the more effective ways to find hidden electronics is the …read more Continue reading Harmonic Radar Finds Hidden Electronics
Aliens is the second film from the legendary science-fiction series about, well… aliens. Naturally, it featured some compelling future-tech — such as the M314 Motion Tracker. [RobSmithDev] wanted to recreate …read more Continue reading Building a Functional Aliens Motion Tracker
If you grew up in the middle of the Cold War, you probably remember hearing about the Distant Early Warning line between duck-and-cover drills. The United States and Canada built …read more Continue reading The DEW Line Remembered
It can be jarring to see various sensors, smart switches, cameras, and other technology in a house built in the 1930s, like [Chris]’s was. But he still wanted presence detection …read more Continue reading Presence Detection Augments 1930s Home
If you want to play with radar — and who could blame you — you can pretty easily get your hands on something like the automotive radar sensors used for …read more Continue reading Hacked Ultrasonic Sensors Let You See With Sound