Mounting; Antenna Unit - Furuno Inmarsat Mini-C MES FELCOM19 Installation Manual

1.

MOUNTING

1.1

Antenna Unit

1.1.1 Mounting location
Refer to IMO resolutions A663(16) and A.807(19), as amended.
• There should be no interfering object within the line-of sight to the satellite. Objects
within line-of sight to a satellite, for example, a mast may block transmission/recep-
tion. Mount the antenna unit as high as possible. This keeps it free of interfering ob-
jects and water spray. The location should be well away from a GPS antenna. A
GPS receiver may be interfered by the Inmarsat C wave.
• If Inmarsat ship earth stations other than C are installed, separate the Inmarsat an-
tenna at least 8 m.
• Separate the antenna unit from an S-band radar as follows:
• The allowable vibration level as specified by Inmarsat is as shown in the table be-
low.
Frequency
2 to 10 Hz
10 to 100 Hz
• Avoid the location near tunnels and stacks; smoke and soot on the radome can low-
er signal level (leave 10 m or more in horizontal distance).
• Separate the antenna unit 5 m from HF, VHF of 27 MHz antenna.
NOTICE
Do not apply paint, anti-corrosive sealant or contact
spray to coating or plastic parts of the equipment.
Those items contain organic solvents that can damage
coating and plastic parts, especially plastic connectors.
INSTALLTION
ZONE
2 m 2 m
2 m 2 m
5 m
S-band radar
Allowable vibration level
2.54 mm Peak Amplitude
9.8 m/s2 Peak Acceleration
Install above this line
PROHIBITED PROHIBITED
ZONE ZONE
1.5 m
15°
HORIZONTAL LINE
Level
1-1