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4. INSTALLATION
RMC: Recommend Minimum Specific GNSS Data
$--RMC,hhmmss.ss,A,llll.lll,a,yyyyy.yyy,a,x.x,x.x,xxxxxx,x.x,a,a*hh<CR><LF>
1. UTC of position fix
2. Status: A=data valid, V=navigation receiver warning
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, degrees E/W
9. Mode indicator (see note)
10. Checksum
NOTE Positioning system Mode indicator:
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.
4-14
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+---+---------------------------------------- 3
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+--------------------------------------------------- 2
+---------------------------------------------------------- 1
A = Autonomous
D = Differential
E = Estimated (dead reckoning)
M = Manual input
S = Simulator
N = Data not valid
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| | | +--- 10
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| | +----- 9
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+--+------- 8
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+--------------- 7
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| +--------------------- 6
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| +------------------------- 5
+---+---------------------------- 4
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