Basic Qualification · B-001 Regulations and policies · B-001-016-008
What precaution must an amateur radio operator take when transmitting near band edges?
- A Restrict operation to radiotelegraphy (CW) or digital modes
- B Make sure that the emission mode is compatible with agreed band plans
- C Reduce transmitter power
- D Ensure that the entire occupied bandwidth falls within the amateur radio band
Correct answer: D — Ensure that the entire occupied bandwidth falls within the amateur radio band. From the official ISED question bank, verified word for word.
Why
When you transmit near a band edge, your signal spreads out slightly beyond the exact frequency you set; this spread is called occupied bandwidth. The full explanation — and one for every question — is in Pro.
Practise this section
The rules: who may operate, what the certificate allows, station identification, third-party traffic, what you may and may not transmit, and how ISED regulates the amateur service.