Furuno SC-110 - Manual (Page 17)

1. INSTALLATION
1-5
2. Fix the antenna unit to the post as shown below.
3
2
1
Set the antenna
unit to the flange.
Fix the #1 and #2 antennas on
the fore-and-aft line of the ship,
with the #2 antenna forward
of the #1 antenna.
Flat washer
Spring washer
Nut
(Torque: 29.58 Nm)
Fastening antenna unit to a post