Basic Qualification · B-006 Feedlines and antenna systems · B-006-005-006
What instrument is useful in adjusting the physical length of an antenna?
- AAntenna analyzer
- BMultimeter
- CCapacitance meter
- DFrequency meter
Correct answer: A — Antenna analyzer. From the official ISED question bank, verified word for word.
Why
An antenna analyzer measures how well your antenna matches the radio's frequency by showing standing wave ratio, letting you trim the physical length until the signal flows freely. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and antenna systems is section B-006 of the Basic exam: Getting the signal out: antennas, feedlines, SWR, baluns, matching, and why antenna length depends on frequency.
Drill B-006 — free, no account