If necessity is the mother of invention, nostalgia must be its stepmother, or its aunt at the very least. The...
PCB
The radio frequency world is full of mysteries, some of which seem to take a lifetime to master. And even...
How do you convert an old cockpit instrument into a clock? Easy: just build a circuit that convinces it it’s...
Dirty little secret time: although amateur radio operators talk a good game about relishing the technical challenge of building their...
As NFC chips proliferate, so do the antennas they require for operation, and since many NFC-enabled items are single-use, this...
Yagi-Uda antennas, or simply “Yagis”, are directional antennas that focus radio waves to increase gain, meaning that the radio waves...
HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. received a...
he microstrip antenna is a convenient, planar, easy-to-fabricate antenna with some attractive attributes and features, as well as some distinct...
We have all seen Printed Circuit Board (PCB) antennas: those squiggly bits of traces on PCBs connected often to a...
Hi, my name is Dan and I’m a crimpoholic. Honestly, I didn’t know I was a serial abuser of crimping...
Old radios didn’t have much in the way of smarts. But as digital synthesis became more common, radios often had...
It is an age-old problem. You have a 2.5 GHz source and you want it at 5 GHz. You need...
