©
CIAS Elettronica S.r.l.
Ed. 1.0
Installation Handbook
page
33
of
51
CORAL
2.6 Length of Dead Zones near the equipment
The length of the
Dead Zones
near the equipment is based on the distance of the equipment
from ground, on the sensitivity set on the receiver and on the type of antenna used.
With regard to the considerations stated above, and based on plant requirements, the equipment
must be installed at a certain height from ground.
In mean plant the height should be about 80
cm. (from the ground and the centre of the equipment).
With medium sensitivity setting, the
suggested
crossing
overlap is
5 m
., for the 80-120-200 m. versions and 3,5 m. for the 50 m.
version.
20
30
10
40
50
60
70
80
90
100
20
30
10
40
50
60
70
80
90
100
1
2
3
4
5
6
7
8
9
10
Antenna
centre height
from ground [cm]
Dead Zone
lenght [m]
Maximum
sensitivity (”F”)
Minimum
sensitivity (”0”)
Figure 5 CORAL 100 Dead zone length near the equipment versus
antenna centre height from ground.
20
30
10
40
50
60
70
80
90
100
20
30
10
40
50
60
70
80
90
100
1
2
3
4
5
6
7
8
9
10
Antenna centre
height from
ground [cm]
Dead Zone
lenght [m]
Maximum
sensitivity (”F”)
Minimum
sensitivity (”0”)
Figure 6 CORAL 220: Dead zone length near the equipment versus
antenna centre height from ground.
Summary of Contents for CORAL
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