1-4
1.3 Mounting the Antenna Unit on the Mounting Platform
CAUTION
1) Work at high places is dangerous. Always wear a
hard hat and safety belt when working on the
antenna unit mast.
2) Both a service platform and steps to the service
platform must be mounted to provide safe access
for service personnel. Improperly installed
platforms present a hazard to service personnel.
Siting considerations
CAUTION
A magnetic compass will be affected if
placed too close to the antenna unit.
Below are the minimum safe distances
for magnetic cpmpassis.
Consider the following points when selecting
a mounting location for the antenna unit.
¥ No funnel, mast or derrick should be within
the vertical, beam width of the antenna in
the bow direction, especially zero degrees
–5°, to prevent blind sectors and false
echoes on the radar picture.
¥ Fumes from the funnel or other exhaust
vent can adversely affect performance and
hot gas can distort the radiator. The antenna
unit must not be mouonted in a place where
the temperture may exceed 70°C.
¥ Leave sufficient space around the unit for
maintenance ans servicing. See the
antenna unit outline drawing for recommen-
ded maintenance space.
¥ Locate the unit well away from the aerial of
a radiotelephone or navigation receiver to
prevent interference. Separation of more
than two meters is recommended.
Antenna
RSB-0026
RSB-0031
RSB-0088
RSB-0089
RSB-0090
Standard
Compass
Steering
Compass
4.8 m
3.6 m
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