Furuno NAVNET 1933C-BB - Manual (Page 30)

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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.
Ground
terminal
Rubber
mat
Bow mark
Location of rubber mat
2. Lay the antenna unit on the mounting platform, orienting it as shown in below.
STERN
BOW
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.