Advanced Qualification · A-006 Receivers · A-006-005-010
Poor dynamic range of a receiver can cause many problems when a strong signal appears within or near the front-end bandpass. Which of the following is NOT caused as a direct result?
- A Cross-modulation
- B Feedback
- C Desensitization
- D Intermodulation
Correct answer: B — Feedback. From the official ISED question bank, verified word for word.
Why
Feedback happens when a receiver's own output loops back into its input, usually because of poor shielding or a wiring mistake, not because the incoming signal is too strong. The full explanation — and one for every question — is in Pro.
Practise this section
Receivers: superheterodyne design, selectivity, sensitivity, images, AGC and noise.