When we first developed telescopes, we started using them on the ground. Humanity was yet to master powered flight, you...
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Ever since the first satellites started imaging the Earth, scientists have been using the data gathered to learn more about...
When Japan’s SLIM lunar lander made a rather unconventional touch-down on the lunar surface, it had already disgorged two small...
Generally, the biggest problem a new ham radio operator will come across when starting out on the high frequency (HF)...
When you think of satellite communications, you probably think of a dish. But that’s not the only option —...
AM radios were easy to understand. The strength of the signal goes up and down, and the audio follows. FM...
We love a good deal, especially when it comes to scavenging parts for projects. Cheap outdoor solar lights are more...
As far as timekeeping goes, there’s nothing more accurate and precise than an atomic clock. Unfortunately, we can’t all have...
Crosley was a famous name in radio for more than one reason. The National VOA Museum of Broadcasting has a...
We know what you’re thinking: with so many wireless modules available for just pennies, trying to create a physical data link...
We are spoiled with multimeters today. Even the cheapest meter you will get these days is almost surely digital with...
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...