Raymarine Quantum, Installation Instructions Manual

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RayNet
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Item Description
1 Sonar module
2 RayNet cables
3 RayNet network switch
4
Quantum™ Radome
5 Multifunction display
6 DownVision transducer
7
Evolution ACU
8 SeaTalk ng spur cable
9 Evolution EV
10 Pilot head controller
11 Wi-Fi datalink
3.7 Location requirements
The optimum height for the Quantum™ scanner is
a location that is high enough above the waterline
to give a long range line-of-sight to the horizon, but
not so high as to be adversely affected by the boat's
pitching and rolling.
D11700-1
The scanner must also be mounted where it is:
• Above head height.
• Easily accessible.
• As near as possible to the boat's centerline.
• On a rigid and stable platform, capable of securely
supporting the scanner under seagoing conditions.
• Clear of large objects such as the flybridge, large
engine stacks, searchlights, horns, masts etc.
(see
Shadow areas and false echoes for additional
information)
• Clear of heat and fumes.
• At least 1 m (3 ft) from a magnetic compass or
other scanners.
Shadow areas and false echoes
Mount the Radar scanner away from large structures
or equipment, such as engine stacks, searchlights,
horns, or masts. These objects may cause shadow
areas and false echoes. For example, if you
mount the Radar scanner on a mast, echoes from
other targets may be reflected from the mast. Wet
sails may also cause shadow areas, so Radar
performance may be reduced in the rain. It is
particularly important to avoid shadow areas near the
bow. Raising or even lowering the Radar scanner
may help to reduce these effects.
In shadow areas beyond the obstruction there will be
a reduction of the beam intensity. There may be a
blind sector if the beam intensity is not sufficient to
obtain an echo from an object. This may occur even
at close range. For this reason the angular width
and relative bearing of any shadow area must be
determined at installation.
You may be able to detect shadow areas or false
echoes on your multifunction display. For example,
sea clutter can be used as a good indicator of blind
arcs. Dark sectors on the Radar display indicate
Planning the installation
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