Question

What are different ways of propogation of radio waves

Answer 1

1.Ground waves
3.Sky waves
3.Space waves
4.Radio waves

Answer 2

$\huge\bigstar\underline\mathcal\blue{Answer:-}$

In Radio communication systems, we use wireless electromagnetic waves as the channel. The antennas of different specifications can be used for these purposes. The mode of propagation of electromagnetic waves in the atmosphere and in free space may be divided into the following three categories:

• The line of sight (LOS) propagation

• Ground wave propagation

• Skywave propagation

In ELF (Extremely low frequency) and VLF (Very low frequency) frequency bands, the Earth, and the ionosphere act as a wave-guide for electromagnetic wave propagation. In these frequency ranges, communication signals practically propagate around the world. The channel bandwidths are small. Therefore, the information is transmitted through these channels has slow speed and confined to digital transmission.

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