G3B - Radio Wave Propagation
General Class
Maximum usable frequency; skip propagation; long path; gray line; scatter modes
12 questions
What is a characteristic of skywave signals arriving at your location by both short-path and long-path propagation?
What factors affect the MUF?
Which frequency will have the least attenuation for long-distance skip propagation?
Which of the following is a way to determine current propagation on a desired band from your station?
How does the ionosphere affect radio waves with frequencies below the MUF and above the LUF?
What usually happens to radio waves with frequencies below the LUF?
What does LUF stand for?
What does MUF stand for?
What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the F2 region?
What is the approximate maximum distance along the Earth’s surface normally covered in one hop using the E region?
What happens to HF propagation when the LUF exceeds the MUF?
Which of the following is typical of the lower HF frequencies during the summer?