Installation, 1 antenna unit installation, Notice – Furuno 841 User Manual
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5. INSTALLATION
This chapter covers installation. Installation
mainly consists of the following:
• siting and mounting the display unit and
the antenna unit
• connection of the signal cable and the
power cable
• establishing the ground
• connecting optional equipment, and
• adjustments.
5.1 Antenna Unit Installation
Mounting considerations
When selecting a mounting location for the
antenna unit keep in mind the following
points.
• Install the unit on top of the wheelhouse
or on the radar mast on an appropriate
platform. It should be placed where there
is a good all-round view with, as far as
possible, no part of the ship’s superstruc-
ture or rigging intercepting the scanning
beam. Any obstruction will cause shadow
and blind sectors.
• Locate the unit at least two meters away
from a direction finder antenna to prevent
interference to the direction finder.
• In order to minimize the chance of pick-
ing up electrical interference, avoid where
possible routing the signal cable near
other onboard electrical equipment. Also
avoid running the cable in parallel with
power cables.
• A magnetic compass will be affected if
placed too close to the antenna unit. Ob-
serve the minimum compass safe dis-
tances to prevent deviation of a magnetic
compass:
Table 5-1 Compass safe distances
• Typical mounting location for a sailboat
and power boat are shown in Figure 5-1.
Figure 5-1 Typical antenna unit mounting
location for sailboat and power boat
NOTICE
The installation of this equipment requires
certain electrical and mechanical skills. If the
owner of the equipment has doubts about his
or her technical abilities, we recommend that
the equipment be installed by a qualified
technician.
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