General Class
Intermediate license providing expanded HF privileges. Covers more advanced operating procedures, radio wave propagation, and circuit theory. 35 questions, 26 needed to pass.
How can a geomagnetic storm affect HF propagation?
How can high geomagnetic activity benefit radio communications?
What causes HF propagation conditions to vary periodically in a 26- to 28-day cycle?
How long does it take a coronal mass ejection to affect radio propagation on Earth?
What does the K-index measure?
What does the A-index measure?
How is long distance radio communication usually affected by the charged particles that reach Earth from solar coronal holes?
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?
Which ionospheric region is closest to the surface of Earth?
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Content for General Class exam questions is based on official FCC Part 97 regulations and the NCVEC question pool.