How Does GSM Work?


Answer:
The full form of GSM is Global system for Mobile Communication. GSM is one of the most famous working standards for mobile phones all over the world.

Over two billion people use the GSM services across 212 countries and territory in the world. The utility of GSM makes national and international roaming very simple and straightforward between mobile phone operators, which enable users to use their cell phone in many parts of the world.

Most GSM networks work on 900 MHz or 1800 MHz bands. Western countries like USA and Canada function on the 850 MHz and 1900 MHz bands. Few countries close to Scandinavia use the rarer frequency like 400 MHz and 450 MHz which were earlier used for the first social group phones.

The transmission power used in GSM850/900 is 1 watt and the one used in GSM1800/1900 is maximum 2 watt.


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