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2.4.3 Scanner Installation Position
1) Physical selection criteria
• Install the scanner at the center of the mast on the keel line.
• If the scanner cannot be installed at the above position for some reason, the
amount of deviation must be minimized. And, reinforce the mount base and
the platform and take precautions to protect the scanner from vibration and
impact at the installation position.
• To avoid the radiating section coming in contact with other installed objects
while it is rotating, ensure that there is at least 200 millimeters from the swing
circle (turning radius) to other installed objects (Fig 2-14). The swing circle of
the JMA-900B radar's scanner is as shown in Table 2-3.
min-height
必要最小高さ
min-offset
オフセット最小
Over 200m
200m 以上
reinforcing member
補強材
Fig 2-11 Installation of scanner
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