Raytheon Anschuetz GmbH High Seas Products MTX5 ユーザーズマニュアル

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Pathfinder Radar Scanners
angular width and relative bearing of any shadow sector must be determined
at installation. Sometimes shadowing can be seen by increasing the radar
gain until noise is present. Dark sectors indicate possible shadowed areas.
This information should be posted near the display unit and operators must
be alert for targets in these blind sectors.
It should also be noted that wet sails create shadow areas and thus sail boat
operators should be aware that radar performance may reduce in rain.
If you mount the scanner on a mast, echoes from the mast may appear on the
radar display. These can be minimised by placing absorbing material, such
as a block of wood, between the scanner and mast.
• Platform rigidity/stability: The scanner platform should not twist (causing
bearing errors) or be subject to excessive vibration.
• Heat/fumes: Mount the scanner away from the top of exhaust stacks, since
the scanner and cables can be damaged by excessive heat and the corrosive
effects of exhaust gases.
For open array scanners you should also consider the following points:
• Mounting Platform: The platform must be mechanically secure and
capable of supporting the mass and inertia of the open array scanner. The
complete unit weighs 30 kg.
• The site must be clear of ropes and moving rigging.
• Sufficient clearance must be allowed to fully open the open array pedestal
for maintenance.
Mounting surface: sailboats
The scanner unit can be installed on a mast platform, an arch, or a bridge
structure. Make sure that the platform surface is flat and the scanner unit drain
hole (radome scanners) is not obstructed. Raytheon recommends that radome
scanner units are best suited for sailboat operation as open array systems are
more difficult to protect from ropes and sails.
For sailboat installations, Raytheon offers a universal mast mount kit for each
radome scanner type. This optional mount is used to fit a radome scanner to a
flat surface on a mast with a minimum diameter of 60 mm (2½ in). When using
the mast mount kit, appropriate hardware should be used for the style and
structure of the mast aboard the vessel.  If there is any doubt concerning the
appropriate type of hardware, consult your boat dealer or representative for
their recommendations.
Depending on the type of sailboat, a radar scanner guard should be installed if
the sails could touch the scanner or platform. Without a proper radar guard the
mounting platform and the radar scanner could be severely damaged.
154_2c1.p65
13/05/99, 13:17
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