Podcast
Questions and Answers
Which of the following statements about free-space propagation is NOT true?
Which of the following statements about free-space propagation is NOT true?
- There are no obstacles between the transmitter and receiver.
- The signal is transmitted through a medium.
- Diffraction and scattering do not occur in free-space propagation. (correct)
- Reflections occur when the surface is larger than the wavelength of the signal.
What is the primary factor that contributes to attenuation distortion in unguided media transmission?
What is the primary factor that contributes to attenuation distortion in unguided media transmission?
- Refraction
- Free space loss
- The higher the frequency of the signal, the higher the attenuation distortion (correct)
- Multipath interference
Which of the following techniques can be used to mitigate attenuation distortion?
Which of the following techniques can be used to mitigate attenuation distortion?
- Using a higher frequency signal
- Increasing the distance between the transmitter and receiver
- Increasing the transmission power without boosters
- Using equalizers (correct)
What is the primary factor that determines free space loss in wireless transmission?
What is the primary factor that determines free space loss in wireless transmission?
What is the relationship between the path loss exponent and frequency in wireless transmission?
What is the relationship between the path loss exponent and frequency in wireless transmission?
What is the primary function of an antenna?
What is the primary function of an antenna?
What is the purpose of a radiation pattern in antenna design?
What is the purpose of a radiation pattern in antenna design?
What is the purpose of sidelobes in a radiation pattern?
What is the purpose of sidelobes in a radiation pattern?
Which type of antenna radiates power equally in all directions?
Which type of antenna radiates power equally in all directions?
What is the primary advantage of using a parabolic reflective antenna?
What is the primary advantage of using a parabolic reflective antenna?
What is the relationship between antenna gain and effective area?
What is the relationship between antenna gain and effective area?
What is the purpose of the spectrum in antenna design?
What is the purpose of the spectrum in antenna design?
Which propagation mode is suitable for transmitting signals above 30 MHz?
Which propagation mode is suitable for transmitting signals above 30 MHz?
What is the primary difference between the radio horizon and the optical horizon?
What is the primary difference between the radio horizon and the optical horizon?
Which of the following is not one of the five basic propagation mechanisms mentioned in the text?
Which of the following is not one of the five basic propagation mechanisms mentioned in the text?
