In tropospheric scattering, rapid fading occurs due to _______ and long-term fading occurs due to ______(a) multipath propagation, turbulences in atmosphere(b) low signal strength, signal travelling below horizon(c) signal travelling below horizon, low signal strength(d) daily and seasonal variations, multi-path propagationI had been asked this question during a job interview.I'm obligated to ask this question of Space Wave Propagation in portion Space Wave Propagation of Antennas

In tropospheric scattering, rapid fading occurs due to _______ and lon

1.	In tropospheric scattering, rapid fading occurs due to _______ and long-term fading occurs due to ______(a) multipath propagation, turbulences in atmosphere(b) low signal strength, signal travelling below horizon(c) signal travelling below horizon, low signal strength(d) daily and seasonal variations, multi-path propagationI had been asked this question during a job interview.I'm obligated to ask this question of Space Wave Propagation in portion Space Wave Propagation of Antennas
Answer» Correct CHOICE is (a) MULTIPATH propagation, TURBULENCES in atmosphere To explain I would say: Rapid fading occurs due to the multipath propagation. As the TURBULENT conditions changes constantly, the path LENGTH and signal strength levels also change. The turbulence in the atmosphere gives rise to daily and seasonal variations in signal strength so results in long-term fading.

Discussion

No Comment Found

Related InterviewSolutions

Which of the following is used for communication in rugged terrain where normal propagation methods fail?(a) Tropospheric Scattering(b) Ground wave(c) LOS(d) Radio HorizonThis question was addressed to me during an interview.My question comes from Space Wave Propagation topic in section Space Wave Propagation of Antennas
For duct propagation the necessary condition is \(\frac{dμ}{dh}\) is always +ve.(a) False(b) TrueThis question was posed to me during an internship interview.The origin of the question is Space Wave Propagation topic in chapter Space Wave Propagation of Antennas
What is the frequency at which tropospheric scatter occurs?(a) Above 30MHz(b) Below 30 MHz(c) < 3MHz(d) > 3 MHz and < 30MHzI had been asked this question in unit test.My question is from Space Wave Propagation topic in chapter Space Wave Propagation of Antennas
Gradient of refractive index is ____________(a) Change in the refractivity with respect to height(b) Change in the height with respect to refractivity(c) Change in the refractivity with respect to Pressure(d) Change in the refractivity with respect to temperatureThis question was addressed to me in an interview for internship.This key question is from Space Wave Propagation in section Space Wave Propagation of Antennas
The expression for refractivity in terms of the Pressure and temperature coefficient is given by ____________(a) \(\frac{77.6}{T}P+4810 \frac{e}{T} \)(b) \(\frac{77.6}{P}T+4810 \frac{e}{T} \)(c) \(\frac{77.6}{P}T+4810 \frac{T}{e} \)(d) \(\frac{77.6}{T}P+4810 \frac{T}{e} \)This question was addressed to me during an interview.The doubt is from Space Wave Propagation topic in chapter Space Wave Propagation of Antennas
Which of the following varies with the refractive index in the atmosphere?(a) Radio horizon(b) Optical horizon(c) Line of sight (LOS)(d) Both radio horizon and LOSThe question was asked in an interview.Query is from Space Wave Propagation topic in portion Space Wave Propagation of Antennas
Which of the following statements regarding tropospheric scattering is false?(a) It occurs in the region near to the mid-point of the transmitter and receiver(b) It occurs above the radio horizon(c) It travels beyond the line of sight distance(d) It occurs below the radio horizonI have been asked this question in an interview for job.My question comes from Space Wave Propagation in portion Space Wave Propagation of Antennas
Expression for effective radius factor k in terms of radius of curvature rc and radius of earth re?(a) \(k=\frac{1}{1-\frac{r_c}{r_e}} \)(b) \(k=\frac{1}{1-\frac{r_e}{r_c}} \)(c) \(k= 1-\frac{r_e}{r_c} \)(d) \(k= 1-\frac{r_c}{r_e} \)This question was addressed to me during an interview.This intriguing question comes from Space Wave Propagation in portion Space Wave Propagation of Antennas
Refractive index is directly proportion to ___________(a) \(\sqrt{ϵ_r}\)(b) \(1/\sqrt{ϵ_r} \)(c) ϵr(d) 1/ϵrThis question was addressed to me by my school principal while I was bunking the class.I want to ask this question from Space Wave Propagation in division Space Wave Propagation of Antennas
What is the value of the effective radius factor k of earth if the radius of curvature and the earth radius equals?(a) 1(b) 0(c) Infinity(d) 4/3The question was asked during an online interview.I want to ask this question from Space Wave Propagation in section Space Wave Propagation of Antennas

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment