JRC JAN-701B - 7.5 Sensor

7 Tools and Setting/Serviceman Menu
7-7
ECDIS
7.5 Sensor
The external input sensor such as GPS, etc. in which the own ship’s position is entered is set up.
The external sensor options are as follows:
●Primary position and secondary position of own ship
●Bearing and speed
●Date data source
●Time zone data source
Note:
• The options available for each sensor differ depending on the system configuration used.
7.5.1 Primary Position and Secondary Position
On this equipment, you can select one of the navigation methods (e.g., GPS navigation, LORAN or
dead-reckoning). This is called the primary position (POSN1) or system position. A secondary position
(POSN2) can also be selected independent of the primary position. This system constantly checks how
far the primary and secondary positions are apart to monitor their mutual positions.
1) In the normal menu
Select [MENU] - [(7) Main] - [(4) Sensor] in that order.
The “Sensor Connection” panel opens.
2) Set each item and left-click the [OK] button to close the panel.
• Use LAN: This item selects when input a data from LAN Board.
• Use Local Port: This item selects when input a data from Local Port.
• (D)GPS1: No.1-GPS or No.1-DGPS is used as the sensor to enter the own ship’s position.
• (D)GPS2: No.2-GPS or No.2-DGPS is used as the sensor to enter the own ship’s position.
• LORAN-C: LORAN-C is used as the sensor to enter the own ship’s position
• GPS-Compass: GPS-Compass is used as the sensor to enter the own ship’s position
• DR (normally, not used): The own ship’s position is estimated on the basis of heading, ship
speed, SDME, etc.
• none: The secondary position is not used.
• DR-Reset: To correct the errors that occur while DR is used, GPS data of POSN1 is used as
the reference position of DR. The GPS data obtained when “OK” in “Sensor
Connection” panel is left-clicked after “DR-Reset” is selected will be used as the
reference position.
Position fixing system for the primary position
“POSN1” (Select from “(D)GPS1”, “(D)GPS2”and “DR”.)
Position fixing system for the secondary position
“POSN2” (Select from “(none)”, “(D)GPS1”,
“(D)GPS2”, “DR” and “DR-Reset”.)
Turning ON/OFF of the secondary position display