Question

A ground receiver station is receiving a signal at 5MHz and transmitted from a ground transmitter at a height of 300m,located at a distance of 100Km from the receiver station.The signal is coming via (Radius of earth 6.4×10^6m,Nmax of ionosphere 10^12 m^3)
1)space wave
2)sky wave propagation
3) satellite transponder
4)All of these​

Answer 1

Answer:

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