Furuno FAR-2167DS-BB, FAR-2167DS-D Installation precaution for S-band antenna unit

Installation precaution for S-band antenna unit

If an S-band antenna unit is mounted near the end of a platform to provide sufficient rotation clear- ance for the radiator, the antenna unit, because of its weight, will swing up and down by ship's vibration and rolling. This exerts excessive levels of stress at the base of the radiator, which can damage the radiator. To prevent this, relocate the antenna unit, or if relocation is not possible rein- force the platform.

Mast for

DF, etc.

Remarkable vibration (pitching)

Mounting position

EXAMPLE

Mast for DF

Mount antenna unit directly on mast or on a platform, as near as possible to center of mast.

Mounting precaution for S-band antenna unit

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