November 26, 2009

electromagnetic spectrum

Last modified: Wednesday, August 20, 2008 

Abbreviated as EM, and also called just  spectrum or electromagnetic radiation spectrum, electromagnetic spectrum refers to the complete range of wavelengths of electromagnetic radiation. The electromagnetic spectrum includes the following different types of of radiation (from lowest energy to highest): radio, microwaves, infrared, visible, ultraviolet, X-rays and gamma-rays.

See RF for a list of radio frequencies within the electromagnetic spectrum.

  Related Links

FCC Approves Spectrum Auction Rules
After months of deliberations, the FCC decided to dedicate almost a third of the spectrum available to some open access conditions, including allowing consumers to attach legal devices and run legal software on the network.

Measuring the electromagnetic spectrum
You actually know more about it than you may think! The electromagnetic (EM) spectrum is just a name that scientists give a bunch of types of radiation when they want to talk about them as a group.

Spectrum Perspective
Auctions, he noted, do not help competition. Most ISPs want more open spectrum, or lightly licensed spectrum similar to the regime for 11 GHz and 18 GHz.

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Related Categories

Mobile Computing

Satellite Communications

Wireless Computing

Related Terms

802.11

EMI

LOS

NLOS

RF

RFID

UWB

Wi-Fi

wireless

Books
electromagnetic spectrum Products


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