Advanced Qualification · A-003 Measurements · A-003-002-011
An oscilloscope measures 500 volts peak-to-peak across a 50 ohm dummy load connected to the transmitter output during unmodulated carrier conditions. What would an average-reading power meter indicate under the same transmitter conditions?
- A 427.5 watts
- B 884 watts
- C 442 watts
- D 625 watts
Correct answer: D — 625 watts. From the official ISED question bank, verified word for word.
Why
The oscilloscope shows 500 volts from the highest to the lowest point of the wave, which is the peak-to-peak value. The full explanation — and one for every question — is in Pro.
Practise this section
Measurements: meters, oscilloscopes, counters, signal generators, and what a reading actually tells you.