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Technical specications | HS80/HS80A/MX575C/MX575D User Manual

8) HDT – Heading, True

Actual vessel heading in degrees (True) produced by any device or system producing true

heading.

$GPHDT,x.x,T*hh<CR><LF>

1 2

¼ Notes:

1 Heading

2 Degrees True

(9) RMC - Recommended Minimum Specic GPS Data

Time, date, position, course and speed data provided by a GPS navigation receiver. This

sentence is transmitted at intervals not exceeding 2 seconds. All data ﬁelds must be

provided: null ﬁelds used only when data is temporarily unavailable.

$GPRMC,hhmmss.ss,A,llll.llll,a,yyyyy.yyyy,a,x.x,x.x,xxxxxx,x.x,a,a,a*hh<CR><LF>

1 2 3 4 5 6 7 8 9 10 11-12-13

¼ Notes:

1 UTC of Position ﬁx

2 Status

A = data valid

V = Navigation receiver warning

3, 4 Latitude, N/S

5, 6 Longitude, E/W

7 Speed over ground, knots

8 Course Over Ground, True

9 Date: dd/mm/yy

10, 11 Magnetic variation, degrees E/W:

Easterly variation (E) subtracts from True course

Westerly variation (W) add to True course

12 Mode indicator:

A = Autonomous mode

D = Diﬀerential mode

E = Estimated (DR)

M = Manual input mode

S = Simulator mode

N = Data not valid

13 RAIM Status:

S=RAIM Safe

U=RAIM Unsafe

C= Caution

V=Not Valid

Simrad MX575D User Manual

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