If you don’t know Morse code, you probably think of a radio operator using a “key” to send Morse code....
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On our travels round the hardware world we’ve encountered more than one group pursuing the goal of making their own...
We were sad to hear that after 52 years in operation, iconic ham radio supplier MFJ will close next month....
In the world of cheap amateur radio transceivers, the Quansheng UV-K5 can’t be beaten for hackability. But pretty much every...
Over the past century or so we’ve come up with some clever ways of manipulating photons to do all kinds...
Most hams can tell you that it’s possible to get a nasty RF burn if you accidentally touch an antenna...
If you’re in the commercial AM radio business, you want to send your signal as far and wide as possible....
On March 8, 2014, Malaysia Airlines Flight 370 vanished. The crash site was never found, nor was the plane. It...
When is the speed of light not the speed of light? Of course, that’s a trick question. The speed of...
There are many facets to being a radio hobbyist, but if you’ve ever had the urge to dabble in radio...
If you read the December 1970 issue of Mechanix Illustrated, you’d be treated to ’s crystal radio build. He called out...
Most modern ham rigs have a voice activated transmission (VOX) mode, although we don’t know many people who use it...
They say that if you love something, you should set it free. That doesn’t mean that you should spend any...
The world of amateur radio is like many other fields in that there has been a move underway from analogue...
Conceptually, radar is pretty simple: send out a radio wave and time how long it takes to get back via...
When you hear about a switching power supply, you think of a system that uses an inductor and a switch...
The modern cellular network is a marvel of technological advancement that we often take for granted now. With 5G service...
When we think of a spark gap radio transmitter, most of us immediately imagine an early twentieth century ship’s radio...
In the past few years we’ve seen the rise of low-power mesh networking devices for everything from IoT devices, weather...
Amateur radio license exams typically have a question about the bandwidths taken up by various modulation types. The concept behind...
How may radios do you own? Forget the AM/FM, GMRS/FRS radios you listen to or communicate with. We’re talking about...
A staple of the radio amateur’s arsenal of test equipment in previous decades was the dip meter. This was a...
A LoRa project has traditionally required a dedicated radio module, because it’s a commercially licenced protocol. But as the way...
AMSAT News Service ANS-091 March 31, 2024 In this edition: AMSAT-DL Proposes Next Generation GEO/MEO Amateur Radio Payload AMSAT-DL’s ERMINAZ...
While most of us carry cell phones that have GPS and other location services, they require a significant amount of...
