Basic Qualification · B-003 Station assembly, practice and safety · B-003-015-002
What is the fundamental difference between digital and analog data?
- A Digital data requires complex waveforms for transmission
- B Digital data is encoded as discrete pre-agreed values
- C Digital data represents information as continuously variable quantity
- D Digital data easily translates into digital signals
Correct answer: B — Digital data is encoded as discrete pre-agreed values. From the official ISED question bank, verified word for word.
Why
Digital data works by breaking information into specific, separate steps that both the sender and receiver have agreed upon in advance, much like counting whole numbers rather than measuring a smooth slide. The full explanation — and one for every question — is in Pro.
Practise this section
Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.