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G9A09:What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?

G9A09G9A

What standing wave ratio results from connecting a 50-ohm feed line to a 200-ohm resistive load?

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G9A09 is 4:1.

The key fact is 4:1. 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 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?G9A04What causes reflected power at an antenna’s feed point?G9A05How does the attenuation of coaxial cable change with increasing frequency?G9A06In what units is RF feed line loss usually expressed?