Basic Qualification · B-001 Regulations and policies · B-001-017-008
On 630 metres and 2200 metres, what key antenna characteristic must be taken into account to comply with power limitations expressed as equivalent isotropically radiated power (EIRP)?
- A Impedance
- B Resonance
- C Gain
- D Bandwidth
Correct answer: C — Gain. From the official ISED question bank, verified word for word.
Why
Gain describes how an antenna focuses energy in a specific direction, which directly changes the effective power radiated even if your transmitter output stays the same. 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.