RF signals will be reflected back by ionosphere at microwave range. Select one: True False
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RF signals are electromagnetic waves that can be used for communication and can have different frequencies, including microwave frequencies. Show more…
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(i) A long-wave radio receiver is expected to receive simultaneously two signals from a transmitter 100 km away, one by a path along the Earth, another by reflection from the lower layers of the ionosphere at a height of 87 km; the latter is a perfect horizontal reflector. The transmitter is working, but no clear signal is detected by the receiver. At what frequency could the transmitter be generating radio waves?
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