Selecting The Scanner Unit Location - Raymarine C-Series Installation Manual

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• Magnetic compass: Mount the display at least 3ft (1m) away from a magnetic
compass.
• Cable runs: The display should be mounted as near as possible to a Direct Current
(DC) power source.
• Environmental: The display should be protected from physical damage and
excessive vibration. Although the display unit is waterproof, it is good practice to
mount it in a protected area away from prolonged and direct exposure to rain and
salt spray.

Selecting the scanner unit location

This section provides information that affects the possible locations of the scanner, and its
position relative to the display unit and to the power supply.
The dimensions of the each scanner unit are shown in the following diagrams.
Selecting the best location for the scanner unit requires careful consideration of the
following points, to ensure reliable and trouble free operation:
In order to minimize potential interference to other systems on board ship
Note:
(EMC), it is advisable to mount the scanner on a part of the boat that is insulated from
the ship's battery negative. If you cannot do this, and encounter problems, you can fit
insulating bushes between the scanner and its mounting bracket.
• Height: The scanner unit should normally be mounted as high as practical above
the waterline, for three reasons:
• For safety reasons the scanner should be out of range of personnel, preferably
above head height. This avoids mechanical danger and electromagnetic
contact, particularly with the eyes.
• Radar operates at the line-of-sight, so a high mounting position gives better
long range performance.
• Surrounding large objects, in the same horizontal plane, can interfere with the
radar signal and cause blind areas or shadow sectors and false targets on the
radar screen (see below).
However, do not mount the scanner so high that it is affected by the pitching and
rolling of the vessel. In addition, you may need to lower the scanner to avoid
creating a shadow sector underneath the scanner's beam.
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C-Series Displays Installation Manual