Basic Qualification · B-006 Feedlines and antenna systems · B-006-007-006
Une antenne isotrope est:
- Aune source ponctuelle hypothétique
- Bun fil de longueur infinie
- Cune charge fictive
- Dun dipôle demi-onde de référence
Correct answer: A — une source ponctuelle hypothétique. Question tirée de la banque officielle d'ISDE.
Why
An isotropic antenna is a theoretical concept, not a real device you can build; it is imagined as a tiny point in space that radiates radio waves equally in every direction. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and antenna systems is section B-006 of the Basic exam: Getting the signal out: antennas, feedlines, SWR, baluns, matching, and why antenna length depends on frequency.
Drill B-006 — free, no account