Occlusion And Multipathing - Wavetronix Expanse XP20 User Manual

Note. Some
countries, such as
the UK, have their
own variant of these
mounting guidelines
due to differences
in road layouts and
traffic profiles. Please
consult with your
local Wavetronix
office to ensure
you are installing
to the correct
local guidelines.
Warning. Choosing
a mounting
height outside
that range could
negatively affect
sensor accuracy.
Expanse XP20 User Guide
8
•
Offset
* reduction
2.0*
in number
2.5*
of reported
speeds.
4.0
5.0
5.5
6.0
6.5
8.0
8.5
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
15.0
15.5–70
Additional information
If the roadway is frequently used by tall vehicles, consider
˿
choosing a higher mounting height to help avoid occlusion.
Don't use an offset of less than 6 ft. (1.8 m). Also, the sensor can
˿
be up to 230 ft. (70.1 m) from the road, but don't go out that far if
you can avoid it; it could lead to decreased accuracy.
For best results, choose the mounting height in the Height
˿
column in the table. If you can't, just keep it somewhere in the
acceptable range.

Occlusion and multipathing

These are two problems you might face while using a radar
detector.
Mounting guidelines in meters
Height (acceptable range)
3.5
3.5
3.0 3.5
3.5 3.5
4.0
4.5 4.5
4.5
5.0
5.5
6.0
7.0 6.5
7.5 8.0
8.0
8.0
9.0 8.5
9.5 8.5
9.0
9.0
9.0
9.5
10.0
10.5
10.5
11.0
11.0
11.5
11.5
12.0
(2.5–5.5)
(2.5–5.5)
(2.5–5.5)
(3.0–6.0)
(3.0–7.0)
(3.5–7.5)
(3.5–8.0)
(4.0–9.0)
(4.5–9.0)
(4.5–9.5)
(5.0–10.0)
(5.0–10.0)
(5.0–10.5)
(5.5–10.5)
(5.5–11.0)
(5.5–11.5)
(6.0–12.0)
(6.0–12.0)
(6.0–12.5)
(6.5–13.0)
(6.5–13.0)
(6.5–13.5)
(7.0–13.5)
(7.0–14.0)
(7.0–14.0)
(7.5–14.5)
(7.5–15.0)
(7.5 to <offset)