Image: Hollyland While wireless microphones have been getting smaller over the years, all thus far still have used ...

Wireless HDMI eliminates the clutter sometimes associated with home theaters. It's also handy for travel, and some specific ...

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 ...

Invest in a transmitter/receiver and ditch trailing cables with our pick of the best wireless guitar systems from beginner to pro It used to be that the best guitar wireless systems were reserved for ...

building both a transmitter and receiver. At the most basic level, AM radio works by generating a carrier wave with an oscillator, and then modulating the amplitude with an audio signal.

The transmitter and receiver components can also be purchased ... which automatically switches to on-board recording when the wireless signal is weak or drops. The wireless range is good (up ...

He designed a transmitter to send and a receiver to ... He set up a specially designed wireless receiver in Newfoundland, Canada, using a coherer (a glass tube filled with iron filings) to conduct ...