Podcast
Questions and Answers
What is the term used to describe the bending of the radio wave path?
What is the term used to describe the bending of the radio wave path?
- Refraction (correct)
- Interference
- Reflection
- Diffraction
Which propagation type follows the contour of the earth and can propagate at frequencies up to 2 MHz?
Which propagation type follows the contour of the earth and can propagate at frequencies up to 2 MHz?
- Sky-wave propagation
- Interference propagation
- Reflection propagation
- Ground-wave propagation (correct)
What type of communication requires antennas to be within effective line of sight due to refraction?
What type of communication requires antennas to be within effective line of sight due to refraction?
- Ground-wave communication (correct)
- Sky-wave communication
- Reflection communication
- Space-wave communication
In which type of propagation does the signal travel back and forth between the ionosphere and the earth's surface?
In which type of propagation does the signal travel back and forth between the ionosphere and the earth's surface?
What is the term for the modulation or retribution of energy within a wavefront when it passes near the edge of an opaque object?
What is the term for the modulation or retribution of energy within a wavefront when it passes near the edge of an opaque object?
Which type of waves require antennas to be in direct line of sight between transmit and receive antennas?
Which type of waves require antennas to be in direct line of sight between transmit and receive antennas?
What are Electromagnetic Waves defined as?
What are Electromagnetic Waves defined as?
In which direction do Electromagnetic Waves propagate?
In which direction do Electromagnetic Waves propagate?
What type of medium do Electromagnetic Waves require for propagation?
What type of medium do Electromagnetic Waves require for propagation?
What is the relationship between wavelength and frequency of Electromagnetic Waves?
What is the relationship between wavelength and frequency of Electromagnetic Waves?
What property allows Electromagnetic Waves to travel in a transverse form?
What property allows Electromagnetic Waves to travel in a transverse form?
Which property of Electromagnetic Waves allows them to undergo interference and diffraction?
Which property of Electromagnetic Waves allows them to undergo interference and diffraction?
What does MUF stand for in the context of sky wave propagation?
What does MUF stand for in the context of sky wave propagation?
What is the significance of working at 85% of the MUF?
What is the significance of working at 85% of the MUF?
What is the Skip distance in the context of sky wave propagation?
What is the Skip distance in the context of sky wave propagation?
What is the Free-space path loss concept related to?
What is the Free-space path loss concept related to?
What is the role of Fade Margin in sky wave propagation?
What is the role of Fade Margin in sky wave propagation?
What is the characteristic of elliptical polarization?
What is the characteristic of elliptical polarization?
What is the function of a wavefront?
What is the function of a wavefront?
What is the unit of power density?
What is the unit of power density?
What is the characteristic impedance of free space equal to?
What is the characteristic impedance of free space equal to?
What is the definition of a ray?
What is the definition of a ray?
What type of polarization is characterized by a rotating polarization vector?
What type of polarization is characterized by a rotating polarization vector?
