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Before you begin, consider the following antenna
installation guidelines:
• Minimize blockage. The antenna requires a
clear view of the sky to transmit and receive
satellite signals (see Figure 2). The fewer
obstructions, the better the system will
perform.
• Make sure the mounting surface is wide
enough to accommodate the antenna’s base
(see Figure 3). Also make sure it is flat, level
(within ±1°), strong enough to support the
antenna’s weight (60 lbs, 27.2 kg), and rigid
enough to withstand heavy vibration.
• Select a location that is as close as possible to
the intersection of the vessel’s fore-and-aft
centerline and midships.
• Select a location that is well above any areas
accessible to passengers and crew to reduce
the risk of RF radiation exposure.
• Do not mount the antenna at the same level
as the radar because the radar’s energy might
overload the antenna. Ideally, you should
mount the antenna 4 ft (1.2 m) above the
radar, outside the beam path of the radar.
Blocked!
Antenna
Mast
Look Angle
Vessel Platform
5 to 80
Figure 2: Blockage from Obstruction
27.36"
(69.5 cm)
26.2"
(66.5 cm)
12"
(30.5 cm)
12"
(30.5 cm)
6"
(15.2 cm)
6"
(15.2 cm)
4 x 1/2"
( 13 mm)
26.2"
(66.5 cm)
FWD
Figure 3: Antenna Dimensions
Side View
Bottom View
Plan the Antenna Installation
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