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Tropospheric Propagation MCQs

Practice Tropospheric Propagation MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Antenna & Wave PropagationTropospheric Propagation

Tropospheric ducting can allow VHF/UHF/microwave signals to travel?

  • ABeyond the normal radio horizon
  • BOnly through underground conductors
  • COnly vertically upward
  • DOnly within an antenna feed line
Report an error
Correct Answer: A. Beyond the normal radio horizon
Explanation: Strong refractive-index gradients can trap radio waves in atmospheric ducts and extend propagation beyond the normal horizon.
Reference: Standard antenna and wave propagation: tropospheric propagation
Question 2
Antenna & Wave PropagationTropospheric Propagation

Troposcatter communication relies on?

  • AScattering from irregularities in the troposphere
  • BReflection from the ionospheric F2 layer only
  • CConduction along Earth wires
  • DReflection from a parabolic feed itself
Report an error
Correct Answer: A. Scattering from irregularities in the troposphere
Explanation: Tropospheric scatter uses small-angle scattering from refractive-index irregularities to communicate beyond line of sight.
Reference: Standard antenna and wave propagation: tropospheric propagation