Furuno FELCOM251, Installation Manual

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2. INSTALLING THE SYSTEM
2-17
Condensation
In some cases there will be condensation inside the radome. The gasket in the bottom
centre of the FELCOM251 Antenna Unit FB-1251 is designed to lead any water away
from the radome. The FB-1501 has a dedicated drain tube.
Make sure the draining gasket or drain tube is not blocked. If the antenna is mounted
on a pole, make sure the pole is hollow inside and open at the bottom, allowing water
from the gasket to escape and providing ventilation for the antenna.
For the Antenna Unit FB-1501 make sure there is free space between the drain tube
and the mounting surface so water can escape.
Install the FELCOM501 Antenna Unit where vibrations are minimal
Install the antenna where vibrations are limited to a minimum. Always use all 4 screws
when installing. It is recommended to use stainless steel screws of A4 quality.
Gasket with drainage Connector
FB-1251 FB-1501
N-Connector
Drain Tube
Free space