Radio
Radio is the radiation (wireless transmission) of electromagnetic signals through the atmosphere or free space. Information, such as sound, is carried by systematically changing (modulating) some prop...
Radio - Wikipedia
10 Things You Didn't Know Your Microwave Could Do!
Here are 10 simple tricks that you can use to turn your microwave into an awesome machine that you cannot live without! We've got bacon, donuts and even sponge
Repeating fast radio bursts found coming from outside our galaxy
Multiple short bursts of radio waves have been found coming from a single location far beyond the Milky Way Galaxy, Cornell astronomers have discovered. It's the first time researchers have found...
Mysterious Cosmic Radio Waves Could Have Come From A Starquake, Study Finds
For almost 10 years, astronomers have been trying to track down the source of mysterious cosmic radiowaves called Fast Radio Bursts (FRBs), which are brighter than our Sun, packed with energy, and fla...
This Hacker's Tiny Device Unlocks Cars And Opens Garages
The $32 radio device, smaller than a cell phone, is designed to defeat the "rolling codes" security used in not only most modern cars and trucks' keyless entry systems, but also in their alarm systems...
Lighter, cheaper radio wave device could transform telecommunications
Researchers have achieved a milestone in modern wireless and cellular telecommunications, creating a radically smaller, more efficient radio wave circulator that could be used in cellphones and other ...
Make Way for the Real Nanopod: Berkeley Researchers Create First Fully Functional Nanotube Radio
BERKELEY, CA — Make way for the real nanopod and make room in the Guinness World Records. A team of researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab...
Radio waves
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves The electromagnetic spectrum is the range of a...
History of radio
The early history of radio is the history of technology that produced radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became...
History of radio - Wikipedia
Wireless telegraphy
Wireless telegraphy is the transmission of electric telegraphy signals without wires (wirelessly). It is now used as a historical term for early radio telegraphy systems which communicated with radio ...
Wireless telegraphy - Wikipedia
Old-time radio
The old-time radio era, sometimes referred to as the Golden Age of Radio, refers to a period of radio programming in the United States lasting from the proliferation of radio broadcasting in the early...
Old-time radio - Wikipedia
Radio communications
Radio is the radiation (wireless transmission) of electromagnetic energy through space. The biggest use of radio waves is to carry information, such as sound, by systematically changing (modulating) s...
Radio communications - Wikipedia
Radio frequency
Radio frequency (RF) is a rate of oscillation in the range of around 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signa...
Transmitter
In electronics and telecommunications a transmitter or radio transmitter is an electronic device which, with the aid of an antenna, produces radio waves. The transmitter itself generates a radio fre...
Transmitter - Wikipedia
Receiver (radio)
In radio communications, a radio receiver is an electronic device that receives radio waves and converts the information carried by them to a usable form. It is used with an antenna. The antenna int...
Receiver (radio) - Wikipedia
Antenna (radio)
An antenna (or aerial) is an electrical device which converts electric power into radio waves, and vice versa. It is usually used with a radio transmitter or radio receiver. In transmission, a radio...
Radio technology
Radio is the radiation (wireless transmission) of electromagnetic energy through space. The biggest use of radio waves is to carry information, such as sound, by systematically changing (modulating) s...
Radio technology - Wikipedia
AM broadcasting
AM broadcasting is the process of radio broadcasting using amplitude modulation (AM). AM was the first method of impressing sound on a radio signal and is still widely used today. Commercial and publi...
AM broadcasting - Wikipedia
FM broadcasting
FM broadcasting is a VHF broadcasting technology, pioneered by Edwin Howard Armstrong, which uses frequency modulation (FM) to provide high-fidelity sound over broadcast radio. The term "FM band" desc...
FM broadcasting - Wikipedia
Shortwave radio
Shortwave radio is radio transmission using shortwave frequencies, generally 1.6–30 MHz, just above the medium wave band.Shortwave radio is used for long distance communication by means of skywav...
Shortwave radio - Wikipedia
Radio navigation
Radio navigation or radionavigation is the application of radio frequencies to determine a position on the Earth. Like radiolocation, it is a type of radiodetermination.The basic principles are measu...
Radio navigation - Wikipedia
Radar
Radar is an object-detection system that uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor...
Radar - Wikipedia
Software-defined radio
Software-defined radio (SDR) is a radio communication system where components that have been typically implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, et...
Internet radio
Internet radio (also web radio, net radio, streaming radio, e-radio, online radio, webcasting) is an audio service transmitted via the Internet. Broadcasting on the Internet is usually referred to as ...
Internet radio - Wikipedia
Cable radio
Cable radio or cable FM is a concept similar to that of cable television, bringing radio signals into homes and businesses via coaxial cable. It is generally used as cable TV was in its early days wh...
Cable radio - Wikipedia
Digital radio
Digital radio has several related meanings:1. Today the most common meaning is digital radio broadcasting technologies. In these systems, the analog audio signal is digitized, compressed using formats...