Somehow [hvde] wound up with a CB radio that does AM and SSB on the 11 meter band. The problem was that the radio isn’t legal where he lives. So he decided to change the radio over to work on the 6 ...

There is a new breed of RF receivers known as software-defined radios, and they are revolutionizing the way in which people listen to shortwave (SW) radio, or indeed any form of radio broadcast. SDRs ...

Chances are, you’ve actually used one without realizing it. I’m referring to a software-defined radio, and it is the design that most — if not all — modern radios, including automotive and home models ...

I needed to come up with a communications device to transmit a handful of bytes, every hour, from a small off-grid solar system to my shop about 150 feet away. The first thought was Wi-Fi, but I ...

"So, Rupert," said the company. "Twenty years on the job. Ask for anything and it shall be yours." I thought for a moment. "A pony, a robotic kitten made out of gold and water-lilies, and a Flex-1500 ...

Per Vices has introduced a wide-band software defined radio (SDR) offering up to sixteen independent Rx and Tx chains, with 1GHz rf bandwidth on each chain, up to 18GHz. Called Cyan, it is a direct ...

If you've never heard of software-defined radio, that may be because some might liken it to outlaw pirate-radio; it's a wild-west wireless device which will, in theory, receive or transmit radio data ...

Microcontrollers tend to consume other kinds of electronics. A project you might once have done with a 555 now probably has a cheap microcontroller in it. Music synthesizers? RC controllers? Most ...

In the last installment we looked at the ultrasonic hardware used in the development of a software designed ultrasonic data transmission system we are calling the SDU-X. In this second, and last, ...