Advanced Qualification · A-003 Measurements · A-003-005-003
How can the frequency response of an oscilloscope be improved?
- A By using a crystal oscillator as the time base and increasing the vertical sweep rate
- B By increasing the vertical sweep rate and the horizontal amplifier frequency response
- C By using triggered sweep and a crystal oscillator for the timebase
- D By increasing the horizontal sweep rate and the vertical amplifier frequency response
Correct answer: D — By increasing the horizontal sweep rate and the vertical amplifier frequency response. From the official ISED question bank, verified word for word.
Why
An oscilloscope shows how a signal changes over time, so its ability to display fast signals depends on two main parts: the vertical amplifier, which handles the signal height, and the horizontal sweep, which moves the trace across the screen. 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.