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1.2.2 Mounting antenna unit of MODEL 1724C
1. Remove mounting hardware at the bottom of the antenna unit; four each of hex bolts
(M10X20), spring washers and flat washers. Save the spring washers and flat washers
to use them to fix the radome base to the platform, at step 3. If the thickness of the
mounting platform is 5 mm or less also save the bolts.
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) 6-10 mm in thickness referring to the
outline drawing at the back of this manual. (A mounting bracket for mounting the
antenna unit on a sailboat mast is optionally available. Refer to page 14.) 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
radome base to the platform. The torque should be between 19.6-24.5 N•m.
* If the thickness of the platform is 6-10 mm, use M10x25 bolts (supplied). For thicker
platform use locally supplied bolts.
Flat
washer
Antenna base
assy.
Spring
washer
Platform
Hex bolt
Apply silicone sealant.
(M10 x 25
or M10 x 20)
Transceiver
module
5 mm or under: M10x20
6-10 mm: M10x25
over 10 mm: localy supplied bolts
How to fasten the radome base to platform