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3.1.2 Installation Considerations
The height must be carefully determined based on the line of sight and on the type of targets to be detected.
Typical minimum detection ranges are given in Table 2.
Before installation, carefully analyze the requirements specific to the site to select each radar installation
height above ground. Mounting the radar too high may result in reduced radar sensitivity due toincreased radar
returns from the ground (refer to Figure 6).
Radar model
above ground
Considerations
ALL < 2 m
Typical, for best detection of a crawling person. However, to
get a line of sight out to the maximum range, a higher
installation point may be desirable.
R1, R2, R3 1 - 3 m
If higher, detection capability may be reduced at close range
and clutter levels increased.
R3D, R5, R5D 2 – 10 m
• may reduce detection capability at close range
• increases clutter levels
• may degrade performance when the radar is
operating in Fast Scan mode
Table 2 - Installation Considerations
The radar installation should maximize the radar beam on the terrain surface. In certain conditions (such as
rising terrain, hilly terrain, etc.), it might be desirable to tilt the whole radar assembly and/or tilt the radar
antenna. Instructions for setting the tilt angle of the antenna can be found in Section 4.2.
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