Raymarine Satellite TV Systems - Manual (Page 14)

10 Raymarine Satellite TV Systems
How do I plan the installation?...
.
When choosing a location for the antenna, consider the following points:
• Make sure you place it where there is an all round clear view of the
horizon.
• It should not be too high above the water - the maximum recom-
mended height is one not exceeding half the length of your boat.
• It should be as near to the centerline of the boat as possible.
• The mounting platform should be rigid and not subject to excessive
vibration.
• It should be away from the edge of the boat - this will avoid unneces-
sary motion which can affect reception.
It should be clear of any
radar as this may prevent
the antenna working
correctly.
Make sure nearby objects do not
block the antenna. It requires a +15
0
to +90 0 look angle to receive satellite
signals
Cables
You need to consider the following points before installing the system
cables:
• All cables need to be adequately clamped and protected from physical
damage and exposure to heat - avoid running cables through bilges,
doorways, or close to moving objects.
• Acute bends must be avoided.
• Where a cable passes through an exposed bulkhead or deckhead, a
watertight gland or swan neck tube should be used.
Power requirements
You need to consider the following power requirements:
• Your Raymarine Satellite TV system has been designed to work on a
boat’s power supply rated at 12 V DC.
• If your boats power supply is rated at 24 V DC you will need to install a
suitable DC power inverter to reduce the supply voltage to 12 V DC.
• If your IRD(s) and television(s) require a 220/240 V AC power supply,
you will need to install a suitable DC to AC converter to operate the
units from your boat’s DC power supply.
Clear view of sky
D7949_1
Above the beam
Below the beam
In the
beam
Min 1.2 m (4 ft)
Min 1.2 m (4 ft)
D7950_1
+15
90 0
0
Mast
Blocked!
D7951_1
81258_3.book Page 10 Wednesday, November 8, 2006 2:06 PM