A ground receiver station is receiving a signal at (i) 5 MHz and transmitted from a ground transmitter at a height of 300 m , located at a distance of 100 km from the receiver station. The signal is coming via. Radius of earth = 6.4 × × 10 6 m . N max of isosphere = 10 12 m 3
Text Solution
Verified by ExpertsThe correct answer is:
B
Maximum distance covered by space wave communication 
Critical frequency = 
5 MHz < f c , sky wave propagation (ionospheric propagation)
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