What is 1G technology?

Even after being the first wireless telecommunication technology, 1G technology wasn’t fully digital . Data transmissions were done in analog form at 150 Mhz and above frequency of radio waves. This was the biggest drawback of 1G technology. This led to insecurity of phone calls.6 Mar 2019

1G refers to the first generation of wireless cellular technology (mobile telecommunications) . These are the analog telecommunications standards that were introduced in the 1980s and continued until being replaced by 2G digital telecommunications.

1G mobile communication system was introduced in Japan in 1979 by Nippon Telegraph and Telephone (NTT) . Initially, it started in Tokyo and within next five years expanded to cover the whole of Japan.28 Eyl 2018