Basic Qualification · B-006 Feedlines and antenna systems · B-006-012-005
Ignoring ground effects, what is the radiation pattern of a horizontal half-wave dipole installed with the ends pointing North/South?
- A Radiates mostly to the East and West
- B Radiates mostly to the South and North
- C Radiates mostly to the South
- D Radiates equally in all directions
Correct answer: A — Radiates mostly to the East and West. From the official ISED question bank, verified word for word.
Why
A horizontal half-wave dipole sends its strongest signals perpendicular to the wire itself. The full explanation — and one for every question — is in Pro.
Practise this section
Getting the signal out: antennas, feedlines, SWR, baluns, matching, and why antenna length depends on frequency.