Advanced Qualification · A-007 Feedlines and matching · A-007-007-008
Greater distance can be covered with multiple-hop transmissions by decreasing the:
- A vertical radiation angle of the antenna
- B power applied to the antenna
- C main height of the antenna
- D length of the antenna
Correct answer: A — vertical radiation angle of the antenna. From the official ISED question bank, verified word for word.
Why
Lowering the vertical radiation angle of the antenna means the radio waves leave the antenna at a shallower angle toward the horizon. The full explanation — and one for every question — is in Pro.
Practise this section
Feedlines and matching at the advanced level: transmission line theory, impedance transformation, stubs and matching networks.