2. WIRING
Antenna unit
Connect the antenna unit cable to the ANT connector.
Ground
The display unit contains several CPUs. While they are operating, they radiate noise, which can interfere with radio equipment. Ground the unit to prevent interference. The grounding wire should be 1.25 sq or larger and as short as possible. Connect the grounding wire to ship's ground. On a fiberglass boat, it is best to install a ground plate that measures about 20 cm by 30 cm on the outside of the hull bottom to provide a ground point. If this is not practical, the engine block can be used.
CAUTION
Ground the equipment to prevent electrical shock and mutual interference.
Note: Use a “closed” lug to make the ground connection at the display unit. Do not use an
).
Extending antenna cable length
The standard cable is 10 m long. For extension, in case of the
Cable length | Necessary parts | Code No. |
15 m | ||
30 m | ||
50 m |
5
