Simrad SC90, Руководство по установке

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Verifying the installation parameters for the global
positioning system (GPS) antenna
Information from a few key sensors are vital for the SC90 accuracy. In order to achieve
maximum accuracy, the physical locations of these sensors - normally referred to the
Ship Origin - must be recorded in the SC90 setup. For future reference, the offset values
for each sensor is recorded.
Prerequisites
For accurate location of the global positioning system (GPS) antenna, you need the
detailed vessel drawings. Neither tools nor instruments are required. The SC90 is turned
on, and it is working normally.
Context
The physical location of the global positioning system (GPS) antenna relative to the
transducer is required to allow the SC90 to show the correct navigational information in
the SC90 presentation. The locations of the transducer and the Global Positioning System
(GPS) antenna must be referenced to a common
Ship Origin . For the SC90, the Ship
Origin is positioned at the vessel’s stern. This is necessary to get the
Own ship
and
Seine
markers positioned on the vessel’s track line, which is generated from the vessel’s stern.
Procedure
1 Observe the
Status
parameter dialog box in the bottom right corner of the SC90
presentation.
2 Make sure that the dialog box presents the current information from the navigation
sensors: Position, Heading and Speed.
3 Open the
Installation
menu.
a Select the
Setup
tab to open the menu.
b Select
Test
on the
Setup
menu to open the
System Test
menu.
c Select
Installation menu
to open the menu.
d Observe that the
Installation
menu opens across the top of the SC90
presentation.
4 Select
OwnShip
→
Instrument Position Offsets
→
GPS
to open the
GPS Offset
Positions
parameter dialog box.
a Make sure that the correct offset values have been inserted.
b Record the information in the result table.
5 Select
OK
to save the settings and close each parameter dialog box.
Simrad SC90 Installation Manual