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What Is A Quad Band Cell Phone?

In cell phone description They say something called band and it is described as triband,quad band what is it?

  • I want to know what is it and what is the use of it?

  • Answer:

    A band indicates at what carrier frequency the cellphone can be used, GSM cell phones use frequencies within four different frequency bands : -850 MHz (824.2 - 848.8 MHz Tx; 869.2 - 893.8 MHz Rx) -900 MHz (880-2 - 914.8 MHz Tx; 925.2 - 959.8 MHz Rx) -1800 MHz (1710.2 - 1784.8 MHz Tx; 1805.2 - 1879.8 MHz Rx) -1900 MHz (1850.2 - 1909.8 MHz Tx; 1930.2 - 1989.8 MHz Rx) Mostly in the US, 850 and 1900 are used and in Asia 900/1800 are very common. So if you own a triband phone it means that it could support any three of the aforementioned bands (check the phone manual for the exact band). A quad band would most likely to work with all carrires accross the world.

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Well, in every continent the frequency (band) on which the cell phone operates is different. A triband phone means that it can be operated in 3 continents, whereas a quadband phone means that it can operated in four continents. (TRI means 3 & QUAD means 4)

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Each region (USA, Europa, Asia, etc) has its own band. A triband phone works in a certain 3 regions.

moltovivo

Each country has a designated frequency (band) for cell phone service. In this case a triband or quadband phone means that you can use your phone in more countries. In most cases that includes, the US, Europe, Asia and the rest of America.

fxcontrer

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