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) ...

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 ...

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 ...

Smallest FM radio transmitter just created using graphene by the wizards at Columbia University. This one is pretty cool and I certainly do not want to butcher the idea and explanation behind it all.

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 ...

The Si47xx series of integrated circuits from Silicon Labs is a fascinating series of consumer broadcast radio products, chips that apply SDR technologies to deliver a range of functions that were ...

A team of engineers from Columbia University has created a nano-mechanical system with the ability to create FM radio signals. In other words, they've built what is effectively the world’s smallest FM ...