a. Two points on earth’s surface at a distance of 1200 km are communicating using radio waves through an ionospheric layer whose height is 280 km. The maximum electron density of the layer is 6.95×1011 m−3. Calculate the value of frequency fmuf. b. An Ionosphere layer extends from the stratosphere upwards for about 250 mi and it consists three sub-layers. Discuss the effects of these sub-layers on wave propagation.
a. Two points on earth’s surface at a distance of 1200 km are communicating using radio waves through an ionospheric layer whose height is 280 km. The maximum electron density of the layer is 6.95×1011 m−3. Calculate the value of frequency fmuf. b. An Ionosphere layer extends from the stratosphere upwards for about 250 mi and it consists three sub-layers. Discuss the effects of these sub-layers on wave propagation.
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a.
Two points on earth’s surface at a distance of 1200 km are communicating using radio waves through an ionospheric layer whose height is 280 km. The maximum electron density of the layer is 6.95×1011 m−3. Calculate the value of frequency fmuf.
b.
An Ionosphere layer extends from the stratosphere upwards for about 250 mi and it consists three sub-layers. Discuss the effects of these sub-layers on wave propagation.
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