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The Cellular Frequencies in The World

Different countries use different cellular frequencies in the world.Here talk about the difference of the frequencies in different countries.

FrancisLiu
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The Cellular Frequencies in The World

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  1. The Different Cellular Frequencies in the World

  2. Different countries use different cellular frequencies in the world. • In US,the main frequency bands in communications are GSM850, GSM1900, 3G (850/1900 and 1700/2100) and 4G (Verizon USA 4G, Sprint Clearwire WiMAX and T-Mobile 4G). 

  3. You can see the details from the sheet which lists different bands and technologies that the main carriers in the US used as follow(from wikipedia):

  4. In the table the cdmaone and UMTS mean the different generations of the mobile phone and the different technologies.You can see the different generations in the table(from wikipedia):

  5. What about the other countries? You may be confused about their differences.You can see the exact informations from the map(from worldtimezone.com):

  6. In conclusion: • GSM 900 / GSM 1800 MHz are used in most parts of the world: Europe, Asia, Australia, Middle East, Africa in the blue area of the map. • GSM 850 / GSM 1900 MHz are used in the United States, Canada, Mexico and most countries of S. America in the yellow area of the map.

  7. So if I wanna go to China or Europe,is it that my cell phone cannot work according to the situation? Don’t worry. • Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1800/1900 MHz) or four bands (850/900/1800/1900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a phone one can travel internationally and use the same handset. • So if you want to buy gsm jammer,you should know that where do you want to use and what frequencies can the jammer support.Only then can you achieve your purpose. • http://www.jammer-buy.com/gsm-jammer/c-26.html

  8. 4 bands cell phone jammer from: • http://www.jammer-buy.com/gsm-jammer/p-6958.html

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