The?sky waves?are the radiowaves of frequency between 2 MHz to 30 MHz. These radio waves canpropagate?through atmosphere and are reflected back
119) Sky wave propagation is possible in the range from
few MHz up to 30 to 40 MHz
Related Electronic Devices and Communication MCQ with Answers
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.
increase the height of both transmitting and receiving towers
To increase the range of line of sight communication increase the height of both transmitting and receiving towers
45.5 km
A transmitting antenna at the top of a tower has a height 32 m and the height of the receiving antenna is 50 m. the maximum distance is 45.5km
signal containing the message or information before modulation
Baseband?is a?signal?that has a very narrow frequency range, i.e. a spectral magnitude that is nonzero only for frequencies in the vicinity of the origin (termed?f?= 0) and negligible elsewhere