Carrier Wave Generator The Wave Generator creates a high-frequency radio signal. The frequency of this signal is many times greater than the frequency of the audio wave. This signal will "carry ...

Sending electromagnetic waves into the air. In 1894, Marconi transmitted the first radio waves. The first commercial radio station to transmit audio frequencies was KDKA in Pittsburgh ...

Communication radios, often referred to as two-way radios, are indispensable tools in a wide range of industries and everyday ...

THE choice by the U.S.S.R. of frequencies of 20 and 40 Mc./s. for radio transmissions from their Earth satellites provided a new approach to the study of the ionosphere, the main interest of the ...

FM radio works the same way that AM radio works. The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to ...

allowing them to push data transmission into previously unused high-frequency ranges. By merging these two technologies — radio waves at lower frequencies and lasers at higher frequencies ...

Information is coded into the wave before transmission, which can then be decoded when the wave is received. Television and radio systems use this principle to broadcast information. Microwaves ...

Information is coded into the wave before transmission, which can then be decoded when the wave is received. Television and radio systems use this principle to broadcast information. Infrared ...

In a major development, researchers have created a transparent device that can harvest energy from both radio waves and sunlight ... while enabling the efficient transmission of visible light ...