Explain Radio Wave
Explain Radio Wave and also state their merits and demerits?
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Radio Wave: The Radio Wave is an electromagnetic wave with a wavelength between 0.5 cm and 30,000m. The transmission making utilization of radio frequencies is known as radio-wave transmission
Advantages:
(A) Radio wave transmission provides mobility. (B) This is cheaper than laying fibers and cables. (C) It proposes ease of communication over hard terrain.
Disadvantages:
(A) Radio wave communication is not secure communication. (B) The radio wave propagation is vulnerable to weather effects such as rains, thunder storms and so on.
Mobile telephone networks started with analog technology. Analog cellular networks were known as first generation (1G) networks. Such networks had limited capacity, and were subject to fraud and eavesdropping. Digital cellular telephone networks are known as second generation or 2G networks. Digi
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