1. INSTALLATION
1-5
1.1.2 How to install the SC-1303 Antenna Unit
Note 1: Where the installation location is inconvenient for cable connection, connect
the cabling (see step 6) before securing the antenna unit to the mounting location.
Note 2: The bird-repellent fixtures can be attached to the antenna cover to prevent
birds from landing on the cover. If it is more convenient to attach the bird repellent fix-
tures before securing the antenna unit to the mounting location, do step 8 before fixing
the antenna unit.
1. Prepare a mounting platform in accordance with the outline drawing at the back
of this manual. If corrosive material is used, take necessary anti-corrosion mea-
sures.
Note: Holes drilled into the mounting platform must be parallel with the fore-aft
line of the vessel.
2. Orient the antenna unit to face the bow, referring to the figure below. The antenna
should be installed within ±2.5° of the bowline.
Note: The antenna cable must be routed via the indent at the rear of the base (see
figure on the following page).
3. Coat the thread of the hex. bolts with silicone grease.
4. Fasten the unit to the platform with four sets of M10 hex. bolts, spring washers and
flat washers with 20 ±2 Nm torque.
Note: Take care not to crush the cabling when mounting the antenna to the plat-
form.
5. Coat the exposed parts of the nuts, bolts and washers with the Adhesive TB5211
(included) to prevent corrosion.
6. Connect the SC-1303 cable to the cable from the SC-701, then waterproof the
connection (see section 1.5.2 for the waterproofing procedure).
BOW
Flat washer
5 mm to 15 mm
Spring washer
Hexagonal nut
(M10)
Fixing hole
(ø11 mm)
200 to 240 (max.)
160
160
200
Positioning the antenna cable
(Stern view)
Indent
Cable
Mounting platform
Hex nuts
Bolt
Spring washer
Flat washer
Coat with adhesive.
Antenna baseAntenna base
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