NORTHROP GRUMMAN Sperry Marine NAVIGAT X MK 2, Assembly Instructions Manual

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056341 Rev. AA NAVIGAT X Mk 2
Page 6-6 6: System Configuration
Pos. Input
Function: Selects the position data input protocol
Settings: NMEA-GLL
Position is read from the NMEA $--GLL sentence
NMEA-GGA
Speed is read from the NMEA $--GGA sentence
Sens. D.M. Outp.
Function: Selects the NMEA output sentence for magnetic heading data at the
Sens Data output
Settings: NMEA-HCHDM
Magnetic heading is transmitted using the NMEA $HCHDM sen-
tence. The transmitted value is the magnetic heading as displayed
on the NAVIGAT X Mk 2 display, i.e. with all corrections applied
according to calibration and magnetic variation settings.
NMEA-HCHDT
Magnetic heading is sent using the NMEA $HCHDTsentence. The
transmitted value is the magnetic heading as displayed on the NAV-
IGAT X Mk 2 display, i.e. with all corrections applied according to
calibration and magnetic variation settings.
NMEA-HCHDG
Magnetic heading is sent using the NMEA $HCHDG sentence. The
sentence includes the raw magnetic sensor heading and values for
deviation and variation.
If the magnetic heading input is configured to read the $--HDG sen-
tence and a deviation value is received, this value is copied to the
output sentence. Otherwise, the deviation value is the correction
applied according to the calibration table.
If the magnetic heading input is configured to read the $--HDG sen-
tence and a variation value is received, this value is copied to the
output sentence. Otherwise, the variation value is the variation as
set in the Manual Settings menu.