Furuno NX-700B manual 4.7Digital Interfacing, 4-11, Priority, Input data sentence description

4. INSTALLATION

4.7Digital Interfacing

This equipment can receive navigation data in IEC 61162-1 Ed2/2 format.

Priority
TIME＆DATE	ZDA
L/L	GNS > GGA > RMC > GLL
SOG	VTG > VBW > RMC
STW	VHW > VBW
COG	VTG > RMC

Input data sentence description

GGA: GPS position fixing condition

$--GGA,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF>

													+-- 11
												+----	10
											+---------		9
									+---		+------------		8
								+---+		------------------			7
							+	-------------------------				6
						+	----------------------------					5
					+	-------------------------------						4
			+----	+	---------------------------------							3
	+---	+---------------------------------------------									2
+	-------------------------------------------------------------										1

1.UTC of position

2.Latitude, N/S

3.Longitude, E/W

4.GPS quality indicator (see note)

5.Number of satellite in use,00-12, may be different from the number in view

6.Horizontal dilution of precision

7.Antenna altitude above/below mean sealevel, m

8.Geoidal separation, m

9.Age of differential GPS data

10.Differential reference station ID, 0000-1023

11.Checksum

NOTE

0 = fix not available or invalid

1 = GPS SPS mode, fix valid

2 = differential GPS, SPS mode, fix valid

3 = GPS PPS mode, fix valid

4 = Real Time Kinetic. Satellite system used in RTK mode with fixed integers 5 = Float RTK. Satellite system used in RTK mode with floating fingers

6 = Estimated (dead reckoning) mode

7 = Manual input mode

8 = Simulator mode

The GPS quality indicator shall not be a null field.

4-11