Furuno SC-33 Operator's Manual page 11

Selecting the installation site
The installation site must satisfy the four conditions described in this section. After choosing the
site, determine installation height, following the procedure in the next section.
CONDITION 1: Locate the SC-33 away from masts that might prevent reception of the GNSS
signal
• Install the satellite compass where the field of view against zenith is at least ±85°. The installa-
tion site should be as high as possible, above masts, etc. which might interfere with reception.
• If the above condition cannot be satisfied, separate the satellite compass so that the horizontal
angle to the interfering object is less than 10°. Refer to the table below to determine minimum
separation distance.
CONDITION 2: Locate the SC-33 out of radar beams
• Locate the SC-33 more than 20° above the top of a radar antenna.
• Separate the SC-33 at least 3 m from an open-type radar antenna.
• If the SC-33 cannot be separated at least 3 meter from an open-type radar antenna, install it at
least 80 cm above the top of the radar antenna.
SC-33
More
than
20°
Mast, etc. Mast, etc.
SC series antenna installed
away from radar beam
-85°
Mast diameter
10 cm
30 cm
SC-33
Top View
Radar Antenna
(open type)
L=More than
3 m
Positional relationship between radar antenna and SC-33
- If H2
angle from the radar should be more than 20°.
- If L is less than 3 m,
Separation distances from radar antenna
Zenith
+85°
SC-33
Min. separation distance
1.5 m
3 m
Mast, etc. Mast, etc.
Less than 10° Less than 10°
H
1
H
is at least 1 m and L is more than 3 m, the elevation
H1 should be more than 0.8 m.
4
1. MOUNTING
2