Radio Amateur Quiz Canadian License

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Question A-007-002-004

What kind of impedance does a half wavelength transmission line present to the source when the line is shorted at the far end?

Correct Answer

A very low impedance

Explanation

A half-wavelength (λ/2) transmission line acts as a 1:1 impedance repeater. A short circuit (very low impedance) at the far end will appear as a short circuit (very low impedance) at the input.

Warning: Generated by AI