Sperry Marine NAVIKNOT 600 SD, Руководство по эксплуатации, установке и обслуживанию

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056353/J NAVIKNOT 600 SD
5-2 Mechanical Installation
When choosing the antenna location, observe the guidelines below to
minimize the effects of signal shading, multipath reflections and inter-
ference.
• If a mast or other object obstructs the all-round view, install the
antenna unit at a distance of at least ten times the object’s width.
This will result in the object shading an azimuth range of approx. 6°.
Figure 5-3:
Distance to objects
obstructing the view
• Install the unit clear of the RADAR beam(s).
• Observe the following minimum distances to the antennas of trans-
mitting communications equipment:
–
10 m to Inmarsat antennas,
– 5 m to MF/HF antennas,
– 2 m to VHF antennas.
The antenna unit must be mounted parallel with or perpendicular to the
vessel’s fore-and-aft line. The orientation (“forward” or “port”) must be
entered in the GPS setup menu during system configuration. Possible
misalignment of up to ± 9.9° may be electronically compensated for in
the setup menu.
Figure 5-4:
Antenna unit
alignment
The antenna unit may be mounted directly onto a flat surface or on a
mast or pedestal. The required mounting hardware is contained in the
installation kit 4302244, included with the antenna unit.
Figure 5-5:
Mounting hardware from
installation kit
antenna unit
obstructing
object
10 × d
d
forward port
hex head screw
lock washer
jam nut
flat washer