radio waves


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Related to radio waves: microwaves, electromagnetic spectrum
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Radio Waves

radio waves

Traveling electromagnetic disturbances whose frequencies lie in the radio region of the electromagnetic spectrum, extending from about 20 kilohertz to over 300 gigahertz, the highest frequencies corresponding to millimeter and submillimeter wavelengths. Radio astronomy may in principle be carried out at any radio frequency but in practice observations are confined to certain ‘radio-astronomy bands' set aside for that purpose by international agreement to minimize interference from other services (see table). These bands lie within the radio window (see atmospheric windows).
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National Toxicology Program (NTF) caught the eye of many people when it revealed that rats exposed to radio waves developed tumors.
Newmark Grubb Knight Frank (NGKF) has been selected by Chestnut Holdings as the exclusive office leasing agent for the Radio Wave building at 49 West 27th Street.
Efforts are currently underway to create practical implementations of IoT systems in locations where people are active, such as factories, shopping centers, stadiums, stations and airports, and office buildings, and in order to install sensors flexibly and efficiently, systems using radio waves, such as Wi-Fi, Bluetooth, and ZigBee, are widely used.
In addition, devices such as smartphones carried by people moving through the location emit radio waves that can cause mutual interference among those communications.
To address these issues, a two-stage method generating a virtual radio wave environment on a PC was developed.
Its Wi-Fi systems use directed beamforming technology, which delivers more efficient coverage and capacity and reduces the amount of radio waves in the coverage area.
C Chairman of the Conference gave a speech in which he talked about the importance of holding this conference, as well as the importance of radio transmission via short waves and coordination among countries to ensure that radio waves are free from any undesired interference.
Over the past few years, astronomers have observed a new phenomenon, a brief burst of radio waves, lasting only a few milliseconds.
The researchers were able to use the interstellar medium, the `empty' space between stars and galaxies as a giant lens to magnify and look closely at the radio wave emission from the pulsar 0834+06r'.
Research of seasonal rain attenuation and radio waves fading in LOS links at 19.
Studied by the earliest radio astronomers in the 1940's, the Sun is not a powerful emitter of radio waves.
DAY nine of the spectrum auction saw some aggressive bidding for the 1,800 MHz band taking the total value of radio waves to ` 61,093.