Furuno SC-120 - Manual (Page 18)

2. INSTALLATION
2-4
2.2 Installing the Antenna Units
2.2.1 SC-series antenna unit
1. Prepare an installation post for the antenna in accordance with the illustration
shown below.
BOW
Bow direction is
between antennas
#1 and #2.
Gasket
(supplied in installation materials)
B 60.5 mm
B 15 Recommended Flange
Post should be constructed from
stainless steel and measure
4mm or larger in thickness.
3 mm or less
(Option)
Name: Flange
Type: OP20-31
Code No.: 004-378-230
The width of welding should be
within 3 mm from the mast so
that the welding does not touch
the spring washer.
Weld all the way around.
Installation post