Basic Qualification · B-003 Station assembly, practice and safety · B-003-004-001

In a basic CW transmitter, the output from the oscillator is:

  1. A at a submultiple of the operating frequency
  2. B less stable than the transmitted signal
  3. C at the transmitted signal's frequency
  4. D at the transmitted signal's power level

Correct answer: C — at the transmitted signal's frequency. From the official ISED question bank, verified word for word.

Why

In a basic continuous wave transmitter, the oscillator is the heart that creates the radio wave, so its output must match the exact frequency you intend to send out. 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.

Drill B-003 — free, no account · All B-003 questions