A small information on communication on 1g,2g,3g,&4g Here this is some info. on the communication i.e. different "G spectrums". Please read this information it won't take a lot of ur time and would very useful to you. 1G (or 1-G) refers to the first-generation of wireless telephone technology , mobile telecommunications . These are the analog telecommunications standards that were introduced in the 1980s and continued until being replaced by 2G digital telecommunications. The main difference between two succeeding mobile telephone systems, 1G and 2G , is that the radio signals that 1G networks use are analog, while 2G networks are digital. Although both systems use digital signaling to connect the radio towers (which listen to the handsets) to the rest of the telephone system, the voice itself during a call is encoded to digital signals in 2G whereas 1G is only modulated to higher frequency, typically
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