Collaborate Disseminate
The good thing about listening in on satellites is that they tend to beam down all kinds of juicy information from their lofty perches. The bad thing about satellites is …read more Continue reading Junk Bin Cyberdish Turns You Into the Satellite Tracker
The round bottom of a proper wok is the key to a decent stir fry, but it also makes it hard to use on traditional Western stoves. That’s why many …read more Continue reading Wok Your Way to the Center of the Galaxy
We’ve covered dozens of projects about getting images of Earth’s weather straight from the source. It’s not too much of a trick to download images straight from our constellation of …read more Continue reading Listening in on a Deep-Space Satellite as it Returns Home
Snooping in on satellites is getting to be quite popular, enough so that the number of people advancing the state of the art — not to mention the wealth of …read more Continue reading Using an Old Satellite to See the Earth in a New Light
Noise is all around us, and while acoustic noise is easy to spot using our ears, electronic noise is far harder to quantify even with the right instruments. A spectrum …read more Continue reading A Low-Noise Amplifier to Quantify Resistor Noise
One of the great things about the Hackaday community is how quickly you find out what you don’t know. That’s not a bad thing, of course; after all, everyone is …read more Continue reading A Single-Resistor Radio Transmitter, Thanks to the Power of Noise
When the automobile industry really began to take off in the 1930s, radar was barely in its infancy, and there was no reason to think something that complicated would ever …read more Continue reading Take a Deep Dive Into a Commodity Automotive Radar Chip
When one mulls the possibility of detecting pulsars, to the degree that one does, thoughts turn to large dish antennas and rack upon rack of sensitive receivers, filters, and digital …read more Continue reading Homebrew Radio Telescope Bags Pulsar
Foil-lined foam insulation board, scraps of lumber, and a paint-thinner can hardly sound like the tools of a radio astronomer. But when coupled with an SDR, a couple of amplifiers, and a fair amount of trial-and-error tweaking, it’s possible to build your own hydrogen-line radio telescope and use it to …read more
Continue reading Probe the Galaxy on a Shoestring with this DIY Hydrogen-Line Telescope
Want to explore the world of radar by feel daunted by the mysteries of radio frequency electronics? Be daunted no more and abstract the RF complexities away with this tutorial on software-defined radar.
Taking inspiration from our own [Gregory L. Charvat], whose many radar projects have graced our pages before, [Luigi Freitas]’ plunge into radar is spare on the budgetary side but rich in learning opportunities. The front end of the radar set is almost entirely contained in a LimeSDR Mini, a software-defined radio that can both transmit and receive. The only additional components are a pair of soup can …read more
Continue reading SDR Is At the Heart of This Soup-Can Doppler Radar Set