Furuno NAVNET 1823C-BB Installation Manual page 30

Mounting the antenna unit
The antenna unit can be mounted using the fixing holes on the outside (200 x 200 mm) or
inside (140 x 150 mm) the antenna unit.
Using outside fixing holes of the antenna housing
Use the hex head bolts (supplied) to mount the antenna unit as below.
1. Lay the corrosion-proof rubber mat (supplied) on the mounting platform.
2. Lay the antenna unit on the mounting platform, orienting it as shown in below.
1-20
Bow mark
Location of rubber mat
STERN
Antenna unit
CAUTION
Do not lift the antenna unit by the
radiator; lift it by the housing.
Lifting it by radiator will damage the
radiator.
Ground
terminal
Rubber
mat
BOW