Basic Qualification · B-003 Station assembly, practice and safety · B-003-011-009
An RF oscillator should be electrically and mechanically stable. This is to ensure that the oscillator does NOT:
- A drift in frequency over time
- B become overmodulated
- C generate key clicks
- D cause undue distortion
Correct answer: A — drift in frequency over time. From the official ISED question bank, verified word for word.
Why
An RF oscillator must stay steady so its signal does not drift in frequency over time, which would cause your transmission to wander off the assigned channel and interfere with others. 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.