Basic Qualification · B-005 Basic electronics and theory · B-005-013-007
What instrument can provide a direct measurement of power at the output of a transmitter?
- ARF wattmeter
- BWavemeter
- CField-strength meter
- DAmmeter
Correct answer: A — RF wattmeter. From the official ISED question bank, verified word for word.
Why
An RF wattmeter is the only instrument listed that directly measures the actual power, in watts, flowing from your transmitter to the antenna. The full explanation — and one for every question — is in Pro.
Practise this section
Basic electronics and theory is section B-005 of the Basic exam: The theory: Ohm's law, power, series and parallel circuits, AC and DC, frequency and wavelength, decibels, and the metric prefixes the exam leans on.
Drill B-005 — free, no account