Propagation of Electromagnetic Waves in Atmosphere
Propagation of Electromagnetic Waves in Atmosphere: Overview
This topic covers concepts such as Mode of Propagation of Electromagnetic Waves, Ground Wave Propagation, Sky Wave Propagation, Space Wave Propagation, LOS Communication, Skip Distance (Zone) for Sky Wave Propagation, etc.
Important Questions on Propagation of Electromagnetic Waves in Atmosphere
Which mode of propagation is used by short wave broadcast services having frequency range from a few MHz upto 30 MHz?
A ground receiver station is receiving a signal at (a) 5 MHz and (b) 100 MHz, transmitted from a ground transmitter at a height of 300 m located at a distance of 100 km. Hence they can be transmitted by space wave: (Given the value of radius of the earth is 6400 km ). The given statement is true or false.
What is attenuation in wave propagation?
Attenuation of ground waves is due to
1) Diffraction effect
2) Radio wave induces currents in the ground because of polarisation
The range of ground wave transmission can be increased by_______.
The attenuation of surface waves with increase in frequency.
What do you mean by ground wave?
What is ground attenuation?
How ground waves are attenuated?
What is fading in sky wave propagation?
What is skip distance and maximum usable frequency?
How does ionization layers affect the skip distance?
What type of propagation allows signals to be heard in the transmitting station's skip zone?
What is sky wave propagation?
What is skip zone and skip distance?
How do you calculate skip distance?
Why is ground wave propagation not suitable for high frequency?
Why sky wave propagation is not possible for high frequency radio waves?
What is critical frequency in sky wave propagation?
What is the frequency range of sky wave propagation?
