Basic Qualification · B-006 Feedlines and antenna systems · B-006-009-005
The property of an antenna that defines the range of frequencies to which it will respond, is called its:
- A antenna aperture
- B bandwidth
- C front-to-back ratio
- D beamwidth
Correct answer: B — bandwidth. From the official ISED question bank, verified word for word.
Why
Bandwidth is the correct term because it describes the span of frequencies over which an antenna performs well, much like how a radio dial covers a range of stations rather than just one exact spot. 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.