If you’re looking for a simple way to make an RF transmitter, check out [Tomasz]’s Morse code transmitter. His design uses nothing more than a microcontroller and a 16MHz crystal to transmit CW Morse ...

LaunchPad dev boards from Texas Instruments are cheap and easy to program, making them a great Arduino alternative if you can do without some of the bells and whistles. [ech0s] put his to good use by ...

Larry Kahaner | Larry Kahaner is an American journalist and author who resides in Bethesda, Maryland. Steve Galchutt shows off the custom-made low-wattage transmitter he uses on his treks. Chase Brush ...

We like to think of space as the one place where all tech is high and all gadgets are bleeding edge. That may be the case most of the time, but Japan’s Fukuoka Institute of Technology is taking one ...

Last Saturday, more than 150 listeners across the U.S., Italy, France and Japan huddled by their radios to decipher a series of Morse Code transmitted by the Maritime Radio Historical Society. MRHS ...

The first message sent by Morse code’s dots and dashes across a long distance traveled from Washington, DC, to Baltimore on Friday, May 24, 1844—175 years ago. It signaled the first time in human ...