(PhysOrg.com) -- A wireless internet network that uses portions of the old analog TV spectrum may one day become a reality. The plans for a computer network that uses "white spaces," which are empty fragments of the old analog ...
(Phys.org)—The demand for faster, more mobile Internet access for smartphones, tablets and laptops does more than strain the available space we have in our pockets and bags. There's a finite amount of wireless spectrum ...
Telecom
Sep 11, 2012
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(Phys.org) -- In the model astrophysicists and astronomers use to describe the history of the universe, the Big Bang is used as the ultimate starting point, which is believed to have occurred some 13.7 billion years ago. ...
The effect of microwave heating and cell phone radiation on sample material is no different than a temperature increase, according to scientists from the Department of Chemistry and Biochemistry, Arizona State University, ...
General Physics
Nov 15, 2011
14
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RFID technology is on the advance. But, up to now radio chips primarily supply data for the identification of products. Researchers have now developed a transponder which measures temperature, pressure and humidity. The chip ...
Engineering
Oct 1, 2010
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Rice University researchers have won a $1.8 million federal grant for one of the nation's first, real-world tests of wireless communications technology that uses a broad spectral range -- including dormant broadcast television ...
Telecom
Sep 2, 2010
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(AP) -- Verizon Wireless says it has completed the first calls using a brand-new network that's planned to go live next year, offering faster Internet speeds.
Telecom
Aug 14, 2009
0
0
(PhysOrg.com) -- In the old days, when a new wireless technology came along, it got its own swath of the electromagnetic spectrum: AM radio uses 535 to 1,605 kilohertz, so television got chunks between 54 and 806 megahertz. ...
Telecom
Sep 22, 2009
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0
France on Wednesday kicked off auctions for frequencies to build high-speed fourth generation mobile telephone networks needed to keep up with the explosion of Internet-capable smartphones.
Telecom
Jun 15, 2011
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0
(AP) -- Federal officials are beginning work on a comprehensive inventory of the nation's radio spectrum in hopes of finding more capacity for wireless high-speed Internet connections.
Telecom
Jul 14, 2010
0
0
The hertz (symbol Hz) is the SI unit of frequency defined as the number of cycles per second of a periodic phenomenon. One of its most common uses is the description of the sine wave, particularly those used in radio and audio applications.
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