10 1.2.3 Mounting antenna unit of MO DEL 1734C 1. Open the antenna unit packing box carefully.
2. Unbolt the four bolts at the base of the radome to remove the radome cover.
Radome cover
Antenna unit
The mounting surface must be parallel with the waterline and provided with five holes
(four fixing holes and one cable entry) whose dimensions are shown in the outline
drawing attached at the end of this manual.
The unit is adjusted so a target echo returne d 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 li ne.
3. Prepare a platform of 5 to 10 millimeters in thickness for the ante nna unit.
A mounting bracket for mounti ng t he antenna unit on a sailboat mast is optionally
available. (Refer to page 14.) Find the cable entry on the radome base. Next, position
the radome base so the cable entry faces the st er n direction. This alignment must be as
accurate as possible.
Flat washer
Spring washer
M10 x 25 Hex bolt Platform
4- 12 Holes
Cable
entry
Ship's bow
Antenna unit, cover removed