Advanced Qualification · A-006 Receivers · A-006-003-006
What is the term used for the decibel difference (or ratio) between the largest tolerable receiver input signal (without causing audible distortion products) and the minimum discernible signal (sensitivity)?
- A Dynamic range
- B Design parameter
- C Stability
- D Noise figure
Correct answer: A — Dynamic range. From the official ISED question bank, verified word for word.
Why
Dynamic range measures the span between the faintest signal a receiver can hear and the loudest signal it can handle before distorting, essentially defining how well the radio copes with both weak and strong stations at once. The full explanation — and one for every question — is in Pro.
Practise this section
Receivers: superheterodyne design, selectivity, sensitivity, images, AGC and noise.