Radio Amateur Quiz Canadian License

EN FR

Question A-007-005-003

Which of these antennas does not produce circular polarization?

Correct Answer

Loaded helical-wound antenna

Explanation

Crossed dipoles (fed 90° out of phase) and helical beam antennas (axial mode) are designed to produce circular polarization. A simple loaded helical-wound antenna (like a 'rubber ducky') is typically linearly polarized, often vertically.

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