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.
120) Space wave propagation can be
Answer is:
Line of sight communication or satellite communication
Explanation:
Related Electronic Devices and Communication MCQ with Answers
Answer is:
increase the height of both transmitting and receiving towers
Explanation:
To increase the range of line of sight communication increase the height of both transmitting and receiving towers
Answer is:
45.5 km
Explanation:
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
Answer is:
signal containing the message or information before modulation
Explanation:
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
Answer is:
size of antenna would be huge
Explanation:
need for modulation arises from antenna considerations. If base band signal is to be transmitted then size of antenna would be huge