We are spoiled with multimeters today. Even the cheapest meter you will get these days is almost surely digital with...
Hackaday
If like us, you missed out on the TRS-80 Model I back when it first came out, relax .With this brand-new...
These days, affordable software defined radios (SDRs) have made huge swaths of the spectrum available to hobbyists. Whether you’re looking...
There are plenty of hobbies around with huge price tags, and ham radio can certainly be one of them. Experienced...
The FM broadcast band has been with us since the middle of the 20th century, and despite many tries to...
One of the more interesting facets of GPS is that, at least from the receiver’s point-of-view, it’s a fairly passive...
When viewed from just the right position in space, you’d be hard-pressed to think that our home planet is anything but...
LoRa is often talked about as a potentially useful solution for emergency communication. The problem is, few of us are...
If you have software-defined radio hardware and you are only using someone else's software, you are missing out on half...
Building things in a lab is easy, at least when compared to scaling up for mass production. That’s why there...
In the “don’t try this at home” category, builds a spark gap transmitter with a twist. The twist is that the drive...
Back in 1978, the world was a bit different. There was no Raspberry Pi, no Internet, and not even an...
Of all the rabbit holes we technical types tend to fall down, perhaps the one with the most twists and...
Over the past years, fitness trackers have gone from fairly unobtrusive bands that relied mostly on smartphone apps for interaction...
For those who grew up with a cell phone in their hand, it might be difficult to imagine a time...
In a recent article in Elektor magazine, describes the construction and software for an ESP32 walkie-talkie system that uses ESP-NOW for the...
How do you convert an old cockpit instrument into a clock? Easy: just build a circuit that convinces it it’s...
While vacuum electronic devices have largely been superseded over much of consumer electronics, there’s one place where they can still...
What do you need to make a radio transmitter? There are builds that work with just a couple of transistors....
When you think of directional ham radio antennas, you probably think of a Yagi, cubical quad, or a log-periodic antenna....
There are a bunch of ways to estimate the age of a radio amateur, by the letters in their callsign,...
In a world increasingly reliant on technology, a pressing question arises: can our dependence on gadgets, particularly mobile phones, be...
Sustained radio emissions originating from high over a sunspot are getting researchers thinking in new directions. Unlike solar radio bursts —...
There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries a bit...
Like many people spent a lot of time in the 1970s listening to shortwave radio. While you often think of...
