300-360 · Question #168
The customer requires connectivity between two buildings that are 100 meters apart. Which type of antenna is suitable for this installation?
The correct answer is C. parabolic antenna. A parabolic (dish) antenna is the standard choice for point-to-point outdoor bridging links between buildings. It provides very high gain (typically 20–30+ dBi) and an extremely narrow, focused beam, which maximizes signal strength over the distance, minimizes interference with…
Question
The customer requires connectivity between two buildings that are 100 meters apart. Which type of antenna is suitable for this installation?
Options
- Asector antenna
- Bdipole antenna
- Cparabolic antenna
- Dpatch antenna
How the community answered
(64 responses)- A8% (5)
- B13% (8)
- C77% (49)
- D3% (2)
Explanation
A parabolic (dish) antenna is the standard choice for point-to-point outdoor bridging links between buildings. It provides very high gain (typically 20–30+ dBi) and an extremely narrow, focused beam, which maximizes signal strength over the distance, minimizes interference with other RF systems, and improves link budget. Sector antennas cover a wide arc (60°–120°) and are used for point-to-multipoint. Dipole antennas are omni-directional with low gain, suitable for indoor APs. Patch antennas are semi-directional with moderate gain, used for shorter-range or indoor applications - not optimal for a dedicated building-to-building link.
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