attenuates the radiated signal as a result of energy absorption by it
Ground Wave propagation?is a method of radio frequency?propagation?that uses the area between the surface of the earth and the ionosphere for transmission. Theground wave?can?propagate?a considerable distance over the earth's surface particularly in the low frequency and medium frequency portion of the radio spectrum.
VLF few MHz
Ground Wave propagation?is a method of radio frequency?propagation?that uses the area between the surface of the earth and the ionosphere for transmission. Theground wave?can?propagate?a considerable distance over the earth's surface particularly in the low frequency and medium frequency portion of the radio spectrum.
reflects the radiated signal
n radio communication,?skywave?or skip refers to thepropagation?of radio?waves?reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere.
few MHz up to 30 to 40 MHz
The?sky waves?are the radiowaves of frequency between 2 MHz to 30 MHz. These radio waves canpropagate?through atmosphere and are reflected back
Line of sight communication or satellite communication
The radio?waves?having high frequencies are basically called as?space waves. These?waves?have the ability to?propagate?through atmosphere, from transmitter antenna to receiver antenna. These?waves?can travel directly or can travel after reflecting from earth's surface to the troposphere surface of earth.