Scientists have taken advantage of graphene's special properties -- its mechanical strength and electrical conduction -- and created a nano-mechanical system that can create FM signals, in effect the ...

One of our favorite purveyors of electronics knowledge is at it again. This time, [Afroman] explains how frequency modulation works while building up a short-range FM transmitter on a board he has ...

The range of this FM transmitter is around 100 meters at 9V DC supply. The circuit comprises three stages. The first stage is a microphone preamplifier built around BC548 transistor. The next stage is ...

A group of mechanical engineers at Columbia University have produced the world’s tiniest FM radio transmitter. At its heart is a micrometer-sized oscillator powered by one-atom-thick graphene. But ...

Scanning-electron-microscope image of the graphene NEMS. The graphene oscillator is coloured green and is located in the circular region in the centre of the cross. (Courtesy: Columbia University) ...

The circuit is a simple VHF FM transmitter circuit. It is basically a VHF Colpitts oscillator capable of transmitting sound or music to any standard FM receiver/FM Transmitter. The circuit is a simple ...

Recent statistics show that not everybody uses Android Auto and CarPlay when driving, even if their cars come with such capabilities. A significant share of drivers still listen to radio stations, as ...

Ever since a young Henrich Hertz began constructing the scores of electrochemical cells needed to power the world’s first radio transmitter in the 1880s, designers have sought out better and more ...

These days, personal CD players are able to read WMA and MP3 music discs packed with several albums' worth of material, and pocket-sized portable digital jukeboxes are able to carry thousands upon ...

The heart of every radio transmitter is a reliable oscillator. Creating small, and tunable, oscillators that can maintain a precise frequency when conditions like temperature, pressure or humidity ...