Hewlett Packard Enterprise Company AP85 Manual De Usuario

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Aruba AP-85 Outdoor Access Point Series
| Installation Guide
Understanding Antennas |
37
amount of attenuation or reflection. For example, when mounting antennas on the outside surfaces 
of a building to provide coverage to outdoor spaces in front of the building, a directional antenna 
can be used to direct the coverage away from the building.
High Mounting Omni-Directional Antenna Scenario (AP-ANT-80 vs. AP-ANT-90)
The AP-ANT-80 shows greater horizontal range due to its higher gain (8 dBi vs. 3 dBi) antenna, but in 
this very high mounting situation, the AP-ANT-90 may be a better choice for ground level coverage 
because the direction of maximum gain is directed downward toward the ground. This situation could 
potentially be improved if a lower mounting elevation was available for the AP-ANT-80, ideally about 
5 m above Ground.
Figure 31  AP-ANT-80 E-Plane View (Side View)
Figure 32  AP-ANT-80 H-Plane View (Top View)