Furuno FELCOM 12 AP-21, GLL Geographic position latitude and longitude, MTW Water temperature

GLL - Geographic position - latitude and longitude

$--GLL,llll.lll,a,yyyyy.yyy,a,hhmmss.ss,A,a*hh<CR><LF>

							+-------	6
						+---------		5
					+	-----------		4
				+	----------------			3
		+------	+	-----------------------			2
+---	+	-----------------------------------				1

1.Latitude, N/S

2.Longitude, E/W

3.UTC of position

4.Status: A=data valid, V=data invalid

5.Mode indicator(see note)

6.Checksum

NOTE Positioning system Mode indicator:

A = Autonomous

D = Differential

E = Estimated (dead reckoning)

M = Manual input

S = Simulator

N = Data not valid

The Mode indicator field supplements the Status field. The Status field shall be set to V=invalid for all values of Operating Mode except for A=Autonomous and D=Differential. The positioning system Mode indicator and Status field shall not be null fields.

MTW - Water temperature

$--MTW,x.x,C*hh<CR><LF>

		+---------	2
+--	+	-----------	1

1.Temperature, degrees C

2.Checksum

AP-21