RADIO AIDS & NAVIGATION RAN 2204. LECTURE 2: RADIO COMMUNICATIONS. Keywords. Radio Wave Wavelength Amplitude Frequency Communication System Transmission System Receiver System Signal Electronic Equipment. History of Communication.
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LECTURE 2: RADIO COMMUNICATIONS
l is wavelength, c is speed of light c = 3108 m/s in vacuum
Electromagnetic Wave = Electric wave + Magnetic Wave
Electromagnetic wave are used to transmit information by wave motion.
Both waves oscillate at the same frequency
Direction of Propagation
The types of radio wave including:
As Radio Wave moving in air, They will subject to:
Direction of wave propagation
Radio propagation also can be said as the transmission of radio waves
Depending upon the frequency of the radiated signal.
Radio energy is most efficiently propagated by only one of the three main methods:
Space Waves is the part of the transmitted radiation that does not follow the curvature of the earth.