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What is GSM?
GSM is a technology which is the leading cell phone standard all over the world. In 1982 it was recognized as a standard for digital wireless communications and was first adopted in Europe and then...
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Home automation using GSM for security?
A GSM remote control is a wireless remote control switch that connects to the GSM cell phone network. It is activated by calling its cell phone number, it will reject the call without answering and...
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Gsm 900 vs gsm 1800?
GSM-900 and GSM-1800.
GSM-900 and GSM-1800 are used in most parts of the world: Europe, Middle East, Africa, Australia and most of Asia. In South and Central America the following countries use the...
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Which is thicker 130 gsm or 100 gsm?
In the context of Mobile phones gsm means Global System for Mobiles. Hoerver 100 gsm or 130 gsm is usually referred for thickness of paper. gsm means grammes per square meter. Hence 130 gsm is...
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Why is the gsm 900 better than gsm 1800 and gsm 1900?
As the frequency increase its penetration power decreases.The signal travels a lesser distance.Hence for a perticular area more no of towers need to be erected in 1800/1900 than in 900MHZ for full...