via HACKADAY: Passive Diplexer Makes One Antenna Act Like Two
Stay in the amateur radio hobby long enough and you might end up with quite…
Category: Hackaday
via HACKADAY: Peeking Underground With Giant Flying Antennas
Helicopters are perhaps at their coolest when they’re being used as flying cranes — from…
via HACKADAY: A Tiny Tuner For The Low Power Ham
Something that all radio amateurs encounter sooner or later is the subject of impedance matching….
via HACKADAY: Radio Caroline at 60
In the 1960s, if you were a teenager in the United States, a big…
via HACKADAY: The New Extremely Large Telescopes and The US’ Waning Influence In Astronomy
For many decades, the USA has been at the forefront of astronomy, whether with ground-based…
via HACKADAY: GitHub Hosts Ham Radio
has been busy creating version two of a homebrew all-band ham radio transceiver. The…
via HACKADAY: Spend an Hour in the Virtual Radio Museum
You have an hour to kill, and you like old communication technology. If you happen…
via HACKADAY: Matchbox Transceiver Pushes the Spy Radio Concept to Its Limits
The Altoids tin has long been the enclosure of choice for those seeking to show…
via HACKADAY: Ham Radio Paddles Cost Virtually Nothing
If you don’t know Morse code, you probably think of a radio operator using a…
via HACKADAY: Almost Making a Camera Sensor From Scratch
On our travels round the hardware world we’ve encountered more than one group pursuing the…
via HACKADAY: Farewell MFJ
We were sad to hear that after 52 years in operation, iconic ham radio supplier…
via HACKADAY: Reverse Engineering the Quansheng Hardware
In the world of cheap amateur radio transceivers, the Quansheng UV-K5 can’t be beaten for…
via HACKADAY: Downloading Satellite Imagery With a Wi-Fi Antenna
Over the past century or so we’ve come up with some clever ways of manipulating…
via HACKADAY: Radio Frequency Burns, Flying a Kite, and You
Most hams can tell you that it’s possible to get a nasty RF burn if…
via HACKADAY: AM Radio Broadcast Uses Phasor To Let Eight Towers Spray One Big Signal
If you’re in the commercial AM radio business, you want to send your signal as…
via HACKADAY: The Hunt for MH370 Goes On With Barnacles As A Lead
On March 8, 2014, Malaysia Airlines Flight 370 vanished. The crash site was never found,…
via HACKADAY: Measuring An Unknown Velocity Factor
When is the speed of light not the speed of light? Of course, that’s a…
via HACKADAY: Getting Started with Radio Astronomy
There are many facets to being a radio hobbyist, but if you’ve ever had the…
via HACKADAY: Crystal Radio Kit from the 1970s
If you read the December 1970 issue of Mechanix Illustrated, you’d be treated to ’s…
via HACKADAY: Voice Control for a Vintage Heathkit Radio
Most modern ham rigs have a voice activated transmission (VOX) mode, although we don’t know…
via HACKADAY: WSPR To The Wind With A Pi Pico High Altitiude Balloon
They say that if you love something, you should set it free. That doesn’t mean…
via HACKADAY: M17 Digital Communications Go From Strength To Strength
The world of amateur radio is like many other fields in that there has been…
via HACKADAY: DIY 6 GHZ Pulse Compression Radar
Conceptually, radar is pretty simple: send out a radio wave and time how long it…
via HACKADAY: 1950s Switching Power Supply Does it Mechanically
When you hear about a switching power supply, you think of a system that uses…
via HACKADAY: Emails Over Radio
The modern cellular network is a marvel of technological advancement that we often take for…