These days, anything with copper in it is expensive. If you doubt that, a walk into any Home Depot electrical...
receiver
The story of the WW2 codebreakers at Bletchley Park near Milton Keynes, the cracking of the German Enigma and Lorenz cypher machines and the role of...
Full disclosure: ham radio isn’t for everyone, and there are many different facets to it. What appeals to one person...
There are many ways to build a radio receiver, but most have a few things in common, such as oscillators,...
We love seeing the incredible work many RF enthusiasts manage to pull off — they make it look so easy!...
The regenerative radio is long-ago superseded in commercial receivers, but it remains a common project for electronics or radio enthusiasts...
Scanning the firehose of new electronic kits and modules coming from the usual Chinese suppliers can be a rewarding experience,...
A disclaimer: Not a single cable tie was harmed in the making of this backpack cyberdeck, and considering that we...
claims he’s not a radio repair guy, but he agreed to look at a malfunctioning Hallicrafters S-120 shortwave receiver. He...
There’s a joke in the world of radio that all you need for a HF antenna is a piece of...
picked up a shortwave receiver known as the “stressless” receiver kit. We aren’t sure if the stress is from building a...
What was once called radio is now referred to as audio. RF is being replaced by the internet. The delivery...
A rite of passage in decades past for the electronics experimenter was the crystal radio. Using very few components and...
In our surface-mount age, it’s easy to be jaded about miniaturization. We pretty much expect every circuit to be dimensionally...
As any radio amateur will tell you, the world of radio abounds with exciting possibilities. Probably the simplest pursuit of...
The RCA CR-88 was a radio receiver made to work in top-secret government eavesdropping stations. As you might expect, these radios are...
There are two ways to deal with improving ham radio receivers, or — for that matter — any sort of...
Most crystal radio receivers have a decidedly “field expedient” look to them. Fashioned as they often are from a few...
We like regenerative receivers. They perform well and they are dead simple to create. Example? modified a few existing designs...
With the profusion of cheap RTL-SDR devices and the ever-reducing prices of more capable SDRs there might seem to be...
US Army researchers have built a so-called “quantum sensor,” which can analyze the full RF spectrum and real-world signals, a report on...
