Radome cover
Figure 6-2 Antenna unit
Mounting platform
Holes for antenna unit:
The mounting surface must be parallel with the waterline and provided with five holes whose dimensions are shown in the outline
SHIP'S BOW
CABLE
ENTRY 
FLAT WASHER |
|
SPRING WASHER |
|
M10 X 25 HEX BOLT | PLATFORM |
drawing attached at the end of this manual.
The unit is adjusted so a target echo returned from the bow direction will be shown on the zero degree (heading line) position on the screen. When drilling holes, be sure they are parallel with the fore and aft line.
3. Prepare a platform of 5 to 10 millimeters |
in thickness for the antenna unit. (A mount- |
Effective thread length
25 mm
Flat washer
Antenna base plate
Packing
Radome
5 - 10 mm
ing bracket for mounting the antenna unit |
on a sailboat mast is optionally available. |
See the below for details.) Find the cable |
entry on the radome base. Next, position |
the radome base so the cable entry faces |
the stern direction. This alignment must be |
as accurate as possible. Fasten the radome |
base to the mounting platform with four |
each of M10 x 25 hex bolts, flat washers |
and spring washers. |
Mask size;
φ70 to φ 125 mm
Type:
Code no.:
Figure 6-3 Assembling the sailboat mast
mounting bracket (option)
SpringPlatform
washerM10 x 25
Apply silicone sealant Hex bolt
Figure 6-4 How to fasten the radome base
to the mounting platform
Wiring and final preparation
4.Drill a hole of at least 20 millimeters di- ameter through the deck or bulkhead to run the signal cable between the antenna unit and the display unit. (To prevent electrical interference avoid running the signal cable near other electrical equipment and in par- allel with power cables.) Pass the cable through the hole. Then, seal the hole with sealing compound for waterproofing.
5.Remove the shield cover in the radome.
26