Positioning - RADAC WaveGuide 5 Direction User Manual

1.2

Positioning

For obtaining the best results from each WaveGuide sensor, the
following positioning criteria must be taken into account:
• It is advised to choose a mounting position such that the
WaveGuide radar beam is free of large reflecting obstacles
(the beam of the F08 antenna can be approximated to a
conical shape having a 5
in Fig. 1.1). The minimum horizontal distance between
a sensor and any obstacle in the beam's path should be
at least 10% of the vertical distance between the sensor
and the obstacle. This does not only include horizontal
objects in the beam's path but also vertical structures.
• Any structure that the WaveGuide sensors are mounted
to might have some influence on the waves progressing
around it. Hence, it is advised to mount the sensors at a
position facing the mean wave direction so that they can
measure the least disturbed water surface.
• The minimum measuring distance is at 2 meter. As such,
the sensor should be mounted with its reference point at
least 2 meter above the highest expected waterlevel during
the period in which the water surface is monitored. The
reference level for the mounting height of the radars is
shown in Fig. 1.2.
• A vertically mounted radar (0
in optimal performance. But if necessary the WaveGuide
sensor can be mounted with a maximum tilt angle of 15
[deg] (tilted to face the direction away from the structure
it is mounted to).
[deg] half top angle as shown
◦
[deg] tilt angle) results
◦
4
Figure 1.1: The 5 [deg] half top
o
angle of the F08 antenna beam.
◦
Figure 1.2: Radar dimensions
and the zero reference point.
Note that the reference point is
located at the crossing of the cen-
tral axis with the lower surface of
the mounting flange.