Recommended Scenario; Complex Application Scenarios; Installation With Electromagnetic Radiation - Huawei AISU User Manual

AISU
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Figure 2-1 Ideal scenario

2.1.2 Recommended Scenario

In the recommended scenario, there is no obstruction within the range of 120° above the
antenna, as shown in Figure 2-2.
In this scenario, the antenna is installed on an elevated tower or iron tower. During the test,
the optimal measurement result can be obtained after 4–6 hours. However, if there are
maintenance platforms or dense metals (such as angle steel towers with maintenance
platforms), the optimal measurement result can be obtained after 12 hours.
Figure 2-2 Recommended scenario

2.2 Complex Application Scenarios

2.2.1 Installation with Electromagnetic Radiation

The AISU should not be directly radiated by large power because the GPS receiver sensitivity
is high. However, if the radiation cannot be avoided, install the AISU in compliance with the
following principles to ensure the AISU measurement precision, as shown in Figure 2-3.
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Issue 02 (2017-06-12)
No obstructions above
No obstructions above
The AISU should be far away from the main lobe of the radiation source. For example,
the AISU should be installed outside the radiation scope of antennas with other types of
power.
The AISU should be at least 5 m away from the radiation source.
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