Collaborate Disseminate
Crystals are key to a lot of radio designs. They act as a stable frequency source and ensure you’re listening to (or transmitting on) exactly the right bit of the …read more Continue reading Building a Receiver With The ProgRock2 Programmable Crystal
There’s something of a mystique about RF construction at the higher frequencies, it’s seen as a Black Art only practiced by elite wizards. In fact, UHF and microwave RF circuitry …read more Continue reading The Cheap And Available Microwave Playground
A rite of passage in decades past for the electronics experimenter was the crystal radio. Using very few components and a long wire antenna, such a radio could pick up …read more Continue reading Half Crystal Radio, Half Regenerative Radio
In our surface-mount age, it’s easy to be jaded about miniaturization. We pretty much expect every circuit to be dimensionally optimized, something that’s easy to do when SMDs that rival …read more Continue reading Tiny Three-Tube Receiver Completes Spy Radio Suite
In 2019 we got the first-ever direct image of a black hole, which resembled a fuzzy, orange donut. Now, the team has refined the iconic image with the help of machine learning algorithms to produce the highest resolution image possible with the origina… Continue reading Algorithm makeover produces highest resolution image of black hole
Multimeters are indispensable tools when working on electronics. It’s almost impossible to build any but the most basic of circuits without one to test and troubleshoot potential issues, and they …read more Continue reading Your Multimeter Might Be Lying To You
Computers connected to networks are constantly threatened by attackers who seek to exploit vulnerabilities wherever they can find them. This risk is particularly high for machines connected to the Internet, …read more Continue reading Arbitrary Code Execution Over Radio
Yagi-Uda antennas, or simply “Yagis”, are directional antennas that focus radio waves to increase gain, meaning that the radio waves can travel further in that direction for a given transmitter …read more Continue reading Printing Antennas on Circuit Boards
It may be hard to believe, but it’s time for the Hackaday Prize again! The 2023 Hackaday Prize was announced last weekend at Hackaday Berlin, and entries are already pouring …read more Continue reading Hackaday Links: April 2, 2023
It’s been a long time since vacuum tubes were cutting-edge technology, but that doesn’t mean they don’t show up around here once in a while. And when they do, we …read more Continue reading Two-Tube Spy Transmitter Fits in the Palm of Your Hand