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APPENDIX
A
P-17
RMC - Recommemded minimum specific GPS/TRANSIT data
1. UTC of position fix
2. Status: A=data valid, V=navigation receiver warming
3. Latitude, N/S
4. Longitude, E/W
5. Speed over ground, knots
6. Course over ground, degrees true
7. Date: dd/mm/yy
8. Magnetic variation, degree E/W
9. Mode indicator(see note)
10. 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.
$--RMC,hhmmss.ss,A,llll.lll,a,yyyyy.yyy,a,x.x,x.x,xxxxxx,x.x,a,a*hh<CR><LF>
| | | | | | | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | |
+------- 10
+--------- 9
+--+--------- 8
| | | | | | | | |
| | | | | | | |
+------------------ 7
| | | | | | |
+---------------------- 6
+------------------------ 5
| | | | | |
|
+------------------------ 4+-----
| | | |
+----+--------------------------------- 3
| |
+-------------------------------------- 2
+-------------------------------------------- 1
ZDA - Time and data