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Mounting the antenna unit of MODEL1823C-BB
1. Remove mounting hardware at the bottom of the antenna unit; four each of hex. bolts
(M10X20), spring washers and flat washers. Save mounting hardware to use it to fix the
antenna unit to the mounting platform later on.
Flat washer
Spring washer
Hex bolt (M10 x 20)
Screws
two screws on other side
Bow
Stern
Cable entry
Antenna unit, showing location of mounting hardware
2. Construct a platform (wood, steel*, or aluminum) of 5-10 mm (recommended dimension)
in thickness referring to the outline drawing at back of this manual. A mounting bracket
for mounting the antenna unit on a sailboat mast is optionally available. (Refer to page
1-11.) Fasten the platform to the mounting location. Next, position the mounting base on
the platform so the cable entrance faces the stern direction.
*: For steel platform take appropriate measures to prevent corrosion.
Note: When drilling holes in the platform, be sure they are parallel with the fore and aft
line.
3. Using the hex bolts, flat washers and spring washers removed at step 1, fasten the
mounting base to the platform. The torque should be between 19.6-24.5 N•m.
Note: Longer hex bolts (M10X25) are supplied with the installation materials. Use them
instead of the hex bolts removed earlier if the mounting platform thickness is
5–10 mm.
Flat
washer
Antenna base
assy.
Spring
washer
Platform
Hex bolt
Apply silicone sealant.
(M10 x 25
or M10 x 20)
5 mm or under :M10x20
5-10 mm: M10x25
over 10 mm: locally supplied bolts
Effective
thread
length:
12 mm
How to fasten the mounting base to platform