Collaborate Disseminate
Many hardware people around these parts will be familiar with devices used as switches, using at least three-terminals to effect this, an input, an output and a gate. Typical devices …read more Continue reading Is a Diode a Switch?
It is an age-old problem. You have a 2.5 GHz source and you want it at 5 GHz. You need a frequency doubler. [All Electronics Channel] has an interesting video …read more Continue reading A Microwave Frequency Doubler
If there’s one instrument that hams and other radio enthusiasts covet, it’s the venerable Bird 43 Thruline wattmeter. The useful RF tool has barely changed in the nearly 70 years …read more Continue reading Homebrew Wattmeter Pays Homage to Sturdy Original
We all know that light and sound are wave phenomena, but of very different kinds. Light is electromechanical in nature, while sound is mechanical. Light can travel through a vacuum, …read more Continue reading Acousto-Optic Filter Uses Sound to Bend Light
Hopefully by now most of us know better than to rent a modem from an internet service provider. Buying your own and using it is almost always an easy way …read more Continue reading Cable Modem Turned Spectrum Analyzer
We don’t normally embrace the supernatural here at Hackaday, but when the topic turns to the radio frequency world, Arthur C. Clarke’s maxim about sufficiently advanced technology being akin to …read more Continue reading New Video Series: Learning Antenna Basics with Karen Rucker
It’s a problem that few of us will likely ever face: once you’ve built your first homemade integrated circuit, what do you do next? If you’re [Sam Zeloof], the answer …read more Continue reading Garage Semiconductor Fab Gets Reactive-Ion Etching Upgrade
Ah, what fond memories we have of our misspent youth, walking around with a 9,000-volt electromagnetic pulse generator in our Levi’s 501s and zapping all the electronic devices nobody yet …read more Continue reading Is that an EMP Generator in Your Pocket or Is My Calculator Just Broken?
One of the main advantages of cheap wireless modules is that they get used in consumer electronics, so if you know what’s being used you can build your own compatible …read more Continue reading Hacking A Solar Inverter RF Interface
Is it really cheating if the aimbot you’ve built plays the game worse than you do? We vote no, and while we take a dim view on cheating in general, …read more Continue reading Teaching a Machine to Be Worse at a Video Game Than You Are