Podcast
Questions and Answers
What is the most important factor in a communication system?
What is the most important factor in a communication system?
- Atmospheric conditions
- The antenna (correct)
- The time of day
- The frequency of the signal
Which of the following is NOT a factor that affects radio frequency wave propagation?
Which of the following is NOT a factor that affects radio frequency wave propagation?
- The type of modulation used (correct)
- Time of the day
- Frequency of the signal
- Atmospheric conditions
Which path do ground waves follow?
Which path do ground waves follow?
- They follow the curvature of the Earth and remain close to the surface (correct)
- They are radiated into the upper atmosphere and bent or reflected back to Earth
- They travel in a straight line from the transmitting antenna to the receiving antenna
- They propagate along metallic wires or optical fibers
At what frequency range are ground waves strongest?
At what frequency range are ground waves strongest?
What type of communication is limited by the curvature of the Earth and requires antennas to be high enough?
What type of communication is limited by the curvature of the Earth and requires antennas to be high enough?
Which of the following is NOT a basic path for radio frequency wave propagation?
Which of the following is NOT a basic path for radio frequency wave propagation?
What are the characteristics of skywave signals?
What are the characteristics of skywave signals?
Which of the following is an example of line-of-sight communications?
Which of the following is an example of line-of-sight communications?
What is the primary limitation of line-of-sight communications?
What is the primary limitation of line-of-sight communications?
How can electromagnetic energy propagate, according to the text?
How can electromagnetic energy propagate, according to the text?
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