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Pole Mounting
The 27010215 antenna is mounted on a pole. The wall thickness of the pole should be no less than 2.5 mm. A 50 mm diameter pole made of round steel is usually used.
- The antenna must be installed in a place far away from high-voltage power supplies or radio signal interference sources (such as other APs or antennas).
- Do not install antennas in bad weather conditions, for example, during rain, snow, or strong winds.
To prevent water in the antenna from degrading the signal quality, keep the antenna vertical and do not allow the condensation drain hole to clog.
Fixing the Antenna to the Pole
Carry out the following steps:
- Thread the U-type bolt through the bolt holes at the bottom of the antenna and fix the nuts, spring washers, and flat washers on both ends of the U-type bolt (not tightly), as shown in Figure 7-4 and Figure 7-5.
- Align the clamp with the top surface of the pole, as shown in Figure 7-6.
- Fasten all nuts, as shown in Figure 7-7. The recommended torque is 40 N·m for M10 nuts.
Precautions
Take note of the following points when installing an outdoor omnidirectional antenna:
- After the installation is complete, the antenna must be high enough to satisfy signal coverage demands, and the top of the antenna must not exceed the 45-degree protection range of the lightning rod.
- Do not weld a lightning rod directly to the omnidirectional antenna pole, as there should be no metal objects within 1 m of an omnidirectional antenna. Instead, install an independent lightning rod between two omnidirectional antenna poles. Adjust the height of the lightning rod to ensure that the antennas are covered in the protection angle.
- It is recommended that the distance between two omnidirectional antennas be at least 0.5 m.
Figure 7-8 shows installation of an outdoor omnidirectional antenna.
If antennas are installed on a pole made of metal, such as steel, you do not need to install a lightning rod, as shown on the right in Figure 7-8.