Skip to main content

G9A04: What causes reflected power at an antenna’s feed point?

G9A04G9A

What causes reflected power at an antenna’s feed point?

Answer choices for G9A04
Why this wins

The key fact is A difference between feed line impedance and antenna feed point impedance. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

Memory hook: A half wave dipole is two quarter wave legs.

P = E × I

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G9A04 is A difference between feed line impedance and antenna feed point impedance.

The key fact is A difference between feed line impedance and antenna feed point impedance. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

← G9A03G9A05 →

More questions in G9A

G9A01Which of the following factors determine the characteristic impedance of a parallel conductor feed line?G9A02What is the relationship between high standing wave ratio (SWR) and transmission line loss?G9A03What is the nominal characteristic impedance of “window line” transmission line?G9A05How does the attenuation of coaxial cable change with increasing frequency?G9A06In what units is RF feed line loss usually expressed?G9A07What must be done to prevent standing waves on a feed line connected to an antenna?