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Describe briefly, by drawing suitable diagrams, the (i) sky wave and (ii) space wave modes of propagation. Mention the frequency range of the waves in these modes of propagation. |
Answer» Solution :(i) SKY wave and space wave PROPAGATION Sky wave propagation is due to IONOSPHERIC reflection of radio waves back to the earth. Space wave propagation is by line of sight propagation, directly between transmitter to RECEIVER/ or by satellite. FREQUENCY range of sky wave: Few MHz to 40 MHz Frequency range of space wave : Above 40 MHz |
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