Basic Qualification · B-003 Station assembly, practice and safety · B-003-014-004
What noise management system analyzes noise and signal characteristics to partially remove noise?
- ADSP noise reduction
- BNoise canceller (phasing)
- CNoise limiter
- DNoise blanker
Correct answer: A — DSP noise reduction. From the official ISED question bank, verified word for word.
Why
DSP noise reduction works by using a digital signal processor to study both the unwanted noise and the desired radio signal, then applying complex math to subtract the noise while keeping the speech or data intact. The full explanation — and one for every question — is in Pro.
Practise this section
Station assembly, practice and safety is section B-003 of the Basic exam: Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.
Drill B-003 — free, no account