B The Ground Range Of A Sky Wave Link Is 450 Km And The Virtual Height Of The Ionospheric Layer Used Is 200 Km If The 1 (23.83 KiB) Viewed 44 times
B The Ground Range Of A Sky Wave Link Is 450 Km And The Virtual Height Of The Ionospheric Layer Used Is 200 Km If The 2 (19.83 KiB) Viewed 44 times
(b) The ground range of a sky wave link is 450 km and the virtual height of the ionospheric layer used is 200 km. If the maximum electron density of the layer is 4 x 10¹¹ electrons/m³, (i) Calculate the critical frequency. (ii) Calculate the Maximum Usable Frequency (MUF) if the earth is assumed to be flat (use the answer obtained in (i)). (iii) Table shows the specification of HF radio system. Determine the received power, Pr of this sky wave propagation mode.
Parameter Transmitting Power, P₁ Virtual height, h Gain of Transmitting Antenna, G Gain of Receiving Antenna, G, Skip Distance Earth Radius Value 100 W 200 km 5 3 450 km 8500 km
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