[Mr. Carlson] bought a Globe Scout Model 40A ham radio transmitter at a hamfest. The 40A was a grand old transmitter full of tubes, high voltage, and a giant transformer. It is really interesting to ...

Most often ultrasonic transducers are used for distance measurements, and in the DIY world, usually as a way for robots to detect obstacles. But for a weekend project, [Vinod.S] took the ultrasonic ...

Designed for USB-C use with 100 Watt power delivery.

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This tiny dual Bluetooth-transmitter accepts signals from your legacy gear and also serves as a USB audio interface, so you can transmit from your computer. It sounds great and has about a 30-foot ...

Bothell, Wash.-based Tethers Unlimited says it’s delivered the first flight unit of a K-band radio transmitter that’s designed for use on CubeSat satellites as small as a loaf of bread. The SWIFT-KTX ...

The familiar real estate adage “location, location, location” rings true these days for huge tracts on the outskirts of major cities — sites that for decades housed AM radio towers but that today ...

FILE: Despite weather conditions, some people took advantage of the big waves in Galveston. The National Weather Service will install a temporary weather radio transmitter in Galveston at the end of ...