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2. WIRING
2-11
When the De-icer is installed:
1. Before beginning any work on the antenna unit, turn off the breaker for the de-icer line at
the main switchboard to remove the power (100 VAC, 1ø) to the de-icer. (Turning off the
power to the display unit has no effect.)
2. The neck of the antenna unit becomes VERY HOT when the de-icer is working. (The
de-icer turns on when ambient temperature goes down to 5ºC and goes up to 12ºC.)
Coaxial cable
When connecting the coaxial cable to the antenna unit, follow the steps below.
1. Unfasten eight bolts (M6x20) to remove the flange cover from the antenna unit.
2. Apply grease to the O-ring located in the flange.
3. Coat between mating surfaces of the coupler at the end of the coaxial cable and
waveguide flange as below with waterproofing compound (supplied with installation
materials). Do not coat the O-ring.
O-ring
Choke
Coat with waterproofing
compound (supplied).
O-ring
4. Screw eight bolt unfastened at step 1 to fix the coupler to the flange.
Lying of microwave coaxial cable
Secure the cable with fixing bands (supplied) or clamping metal (option, type: 03-011-3228,
code no.: 100-049-620) to the mast and to the wheelhouse structure.
For the optional deck-thru cable gland, see the outline drawing at the back of this manual.
7
Clamping metal (option)