A Lesson In RF Design Thanks To This Homebrew LNA

If you’re planning on working satellites or doing any sort of RF work where the signal lives down in the dirt, you’re going to need a low-noise amplifier. That’s typically not a p…

Junk Bin Cyberdish Turns You Into The Satellite Tracker

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 that to stay in those orbit…

Wok Your Way To The Center Of The Galaxy

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 woks end up in a dark kitchen cabinet, unused…

Listening In On A Deep-Space Satellite As It Returns Home

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 …

Using An Old Satellite To See The Earth In A New Light

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 satellites transmitting signals in …

A Low-Noise Amplifier To Quantify Resistor Noise

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 analyzer is the most convenie…

A Single-Resistor Radio Transmitter, Thanks To The Power Of 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 here to get smarter, righ…

Take A Deep Dive Into A Commodity Automotive Radar Chip

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 make its way into the typ…

Homebrew Radio Telescope Bags Pulsar

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 signal process…