The radio spectrum is the radio frequency (RF) portion of the electromagnetic spectrum. In the United States, regulatory responsibility for the radio spectrum is divided between the Federal Communications Commission (FCC) and the National Telecommunications and Information Administration (NTIA) .
Read moreWhy is VHF short range?
VHF waves, unlike longer waves, are not strongly reflected from the atmosphere; therefore, they do not bend readily around the Earth’s curvature and cannot be transmitted beyond the horizon. Their range is further limited by their inability to pass through hills or large structures .
Read moreWhat radio frequency do people use?
Cellular wireless radio services transmit using frequencies between 824 and 894 megahertz (MHz) . Transmitters in the Personal Communications Service (PCS) use frequencies in the range of 1850-1990 MHz.
Read moreWhat is the most used radio frequency?
2400MHz (2.4Ghz) is the most broadly accepted frequency around the world.
Read moreWhat frequencies are used for what?
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication. … Waveguide frequency bands. BandFrequency rangeY band325 to 500 GHzRadio spectrum – Wikipedia en.wikipedia.org › wiki › Radio_spectrum
Read moreHow is spectrum allocated in different countries?
On the basis of the requirements expressed by each country, assignment plans allocate frequencies for each station in a given service ; allotment plans grant to each country frequencies intended for use by a given service, frequencies which the country then assigns to the stations within its jurisdiction according to …
Read moreHow are allocated frequencies?
ITU definition The International Telecommunication Union defines frequency allocation as being of “a given frequency band for the purpose of its use by one or more terrestrial or space radiocommunication services or the radio astronomy service under specified conditions “.
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