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1.5 Mounting of Antenna Unit for MODEL 1823C
1.5.1 Mounting consideration
See the mounting consideration for MODEL1833C on page 1-4.
The compass safe distance of 1.25 meters (standard compass) and 0.85 meters (steering
compass) should be observed to prevent deviation of the magnetic compass.
1.5.2 Mounting antenna unit of MODEL 1823C
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
1-26.) Fasten the platform to the mounting location. Next, position the base so the cable
entrance faces the stern direction.
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 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.