Basic Qualification · B-006 Feedlines and antenna systems · B-006-003-010
If your location is frequently affected by icing conditions, which type of transmission line would be the most suitable?
- ACoaxial cable
- BOpen-wire line
- CWindow line
- DTwin-lead
Correct answer: A — Coaxial cable. From the official ISED question bank, verified word for word.
Why
Coaxial cable is the best choice because its outer shield completely encloses the inner conductor, keeping ice and moisture away from the signal path. 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