NorthStar Navigation GM1708 961XD - Manual (Page 25)

SECTION TWO - Installation
961 INSTALLATION MANUAL Revision A Page 15
To avoid mutual interferences among different antennas on the vessel,
refer to the drawing of recommended separation distances in Figure 5:
‘Separation distances between antennas,’ below.
Figure 5 shows the minimum recommended distances for the separation
of the GPS antenna from other antennas and physical mounting surfaces.
Under normal circumstances, following these guidelines usually result in
a relatively trouble-free installation.
The installer may want to adjust these distances, however, depending on
the particular equipment and how it is configured. Since each installation
is unique
—according to the wishes of the customer—this information
should be used only as a guideline. It is not absolution in determining
the best locations for every possible equipment configuration.
Figure 5: Separation distances between antennas
Choosing the AN205-P combination antenna location
A combination GPS/DGPS antenna is available for applications involving
serious grounding problems (which creates noise issues with the beacon
receiver), where optimum portability is required, or when only a single
NOTE:
Be especially careful about the distance between the combo
antenna and any sources of magnetic interference (for exam-
ple, the INMARSAT antenna).