Question
Which of the following describes a simple dipole oriented parallel to Earth’s surface?
Answer Options
- A) A ground-wave antenna
- B) A horizontally polarized antenna
- C) A travelling-wave antenna
- D) A vertically polarized antenna
Correct Answer: B
Explanation
Antenna polarization is defined by the orientation of the transmitted wave’s electric field relative to the Earth’s surface (T3B02). A dipole antenna oriented parallel to the Earth’s surface (strung up straight and flat) will radiate signals where the electric field is also parallel to the ground.
Therefore, this arrangement describes a horizontally polarized antenna. Horizontal polarization is typically preferred for long-distance, weak-signal voice (SSB) and CW operation on all amateur bands (T3A03).
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