Furuno GD-1900C, 1833C Mounting antenna unit of MODEL 1933C/1943C/1953C, 1-12, Antenna radiator

1.3.2Mounting antenna unit of MODEL 1933C/1943C/1953C

Referring to the outline drawing at the back of this manual, drill five holes in the mounting platform: four holes of 15 mm diameter for fixing the antenna unit and one hole of 25-30 mm diameter for the signal cable.

Fastening the Radiator to the Radiator Bracket

For your reference, antenna installation materials list appears in the packing lists at the back of this manual (see page A-6 to A-11).

1.Remove the radiator cap from the radiator bracket.

2.Coat contacting surface between antenna radiator and radiator bracket with silicone sealant as shown in figure below.

ANTENNA RADIATOR

(bottom view)

Groove

Radiator

Coat hatched area with silicone sealant.

(MODEL 1933C)

RADIATOR BRACKET

(top view)

10mm

Coat hatched area with

anticorrosive sealant.

(MODEL 1943C/1953C)

Coating the antenna with silicone sealant

3.Coat threaded holes on the antenna radiator with silicone sealant.

4.Grease the O-ring and set it to the radiator bracket.

5.Lay the antenna radiator on the radiator bracket.

6.Coat the radiator fixing bolts (4 pcs.) with silicone sealant. Fasten the antenna radiator to the radiator bracket with the radiator fixing bolts, flat washers and spring washers.

Antenna radiator

O-ring Radiator bracket

Flat washer Spring washer Hex head bolt (M8 x 30)

Coat threaded holes with silicone sealant.

Coat bolts with silicone sealant.

Fastening the radiator bracket to the antenna unit chassis

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