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G9C07:What does “front-to-back ratio” mean in reference to a Yagi antenna?

G9C07G9C

What does “front-to-back ratio” mean in reference to a Yagi antenna?

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G9C07 is The power radiated in the major lobe compared to that in the opposite direction.

The key fact is The power radiated in the major lobe compared to that in the opposite direction. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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More questions in G9C

G9C01Which of the following would increase the bandwidth of a Yagi antenna?G9C02What is the approximate length of the driven element of a Yagi antenna?G9C03How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?G9C04How does antenna gain in dBi compare to gain stated in dBd for the same antenna?G9C05What is the primary effect of increasing boom length and adding directors to a Yagi antenna?G9C08What is meant by the “main lobe” of a directive antenna?