Basic Qualification · B-006 Feedlines and antenna systems · B-006-007-011
Compared with a horizontal antenna, a vertical antenna will receive a vertically polarized radio wave:
- A at higher strength
- B at lower strength
- C at about the same strength
- D at a strength depending on the height above ground
Correct answer: A — at higher strength. From the official ISED question bank, verified word for word.
Why
A vertical antenna receives a vertically polarized wave at higher strength because the antenna and the wave share the same orientation, allowing them to couple energy efficiently. 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.