Installation precaution for S-band scanner unit
If an S-band scanner unit is mounted near the end of a platform to provide suffi- cient rotation clearance for the radiator, the scanner unit, because of its weight, swings up and down by ship’s vibration and rolling, exerting excessive levels of stress at the base of the radiator, which can damage the radiator. To prevent this, relocate the scanner unit, or if relocation is not possible, reinforce the platform.
Pole for DF, etc.
Remarkable vibration (pitching)
Mounting position
EXAMPLE
Pole for DF
Mount the scanner unit Directly on the mast or on the platform, as near as possible to the center of the mast.
Figure 1-1 Mounting of S-band scanner unit
