Basic Qualification · B-006 Feedlines and antenna systems · B-006-009-007
What is meant by antenna gain?
- AThe ratio of the power radiated by an antenna compared to the transmitter power
- BThe power amplifier gain minus the transmission line losses
- CThe ratio of the radiated signal strength of an antenna to that of a reference antenna
- DThe ratio of the signal in the forward direction to the signal in the back direction
Correct answer: C — The ratio of the radiated signal strength of an antenna to that of a reference antenna. From the official ISED question bank, verified word for word.
Why
Antenna gain measures how much stronger a signal becomes in a specific direction compared to a standard reference antenna, usually a simple dipole or isotropic radiator. 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