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6INSTALLATION PROCEDURE
6-6 Connecting an external
navigator
6-7 DGPS
An external navigation equipments can be connected to the NMEA connec-
tor on the rear panel of the system.
Connect a 4-pin microphone connector to the NMEA connector and plug the data
line in the 1-pin connector and the data return line in the 2-pin connector.
When using an external navigator, set “Positioning Equipment” to “NMEA” on the
Positioning Menu screen (☞P. 34).
When sending positioning data obtained from the build-in GPS navigator to option-
al radar MR-61/610, Marine plotter VP-21 or other devices, plug these devices to
the NMEA connector (3-pin/4-pin) on the rear panel of the system while referring to
the overall connection diagram on page 70.
The DGPS is a newly established system intended to improve the positioning
precision of the GSP.
Connecting RD-200, a DGPS beacon receiver, allows the system to receive cor-
rection data from a land DGPS reference station, thereby enabling the positioning
precision to be further improved.
The nominal positioning precision is 100 m when only the GPS is used, but using
the DGPS leads to the nominal precision of 10 m.
*For details, see the RD-200 Instruction Manual.
NMEA OUT+
NMEA OUT_
NMEA IN_
NMEA IN+ 4
3
1
2
NMEA connector on the rear panel