What is main problem of 1G?

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

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What do you understand by 2.5G and how it is different from 2G and 3G technologies?

Digital signals used in this technology use less battery and hence leads to less power consumption. Also provided data services for mobile phones. Advanced version are 2.5G and 2.75G. … Difference between 2G and 3G Cellular Network : 2G3GIt provides slower download speed and slower access to applications.Faster access and download speed for applications.Difference between 2G and 3G Cellular Network – GeeksforGeeks www.geeksforgeeks.org › difference-between-2g-and-3g-cellular-network

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