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■GLL (Geographical position information)
Version 1.5
$GPGLL, ddmm.mmm, a, dddmm.mm, a<CR><LF>
1
2
Version 2.1
$GPGLL, ddmm.mmm, a, dddmm.mmm, a, hhmmss.ss, A*hh<CR><LF>
1
2
Version 2.3
$GPGLL, ddmm.mmm, a, dddmm.mmm, a, hhmmss.ss, A, x*hh<CR><LF>
1
2
1, 2
: Latitude (degree, minute), N/S
3, 4
: Longitude (degree, minute), E/W
5
: UTC time (hour, minute, second: 1/100 second is fixed to 00)
Positioning at UTC [1/100 second] (Version 2.3)
6
: Status A=Enabled, V=Disabled
7
: Check Sum (Versions 1.5 and 2.1)
7
: Mode Indicator (Versions 2.3 and 4.0)
8
: Check Sum (Versions 2.3 and 4.0)
■VTG (Travelling direction and speed information)
Version 1.5
$GPVTG, xxx.x, T, xxx.x, M, xxx.x, N, <CR><LF>
1
2
3
4
Version 2.1
$GPVTG, xxx.x, T, xxx.x, M, xxx.x, N, xxx.x, K*hh<CR><LF>
1
2
3
4
Versions 2.3 and 4.0
$GPVTG, xxx.x, T, xxx.x, M, xxx.x, N, xxx.x, K, x*hh<CR><LF>
1
2
3
4
1, 2
: Travel bearing (degree)
3, 4
: Magnetic bearing (degree)
5, 6
: Speed (knot)
7, 8
: Speed (km/h)
9
: Check Sum (Version 1.5, 2.1)
9
: Mode Indicator (Versions 2.3 and 4.0)
10
: Check Sum (Versions 2.3 and 4.0)
3
4
3
4
5
6 7
3
4
5
6 7 8
A : GPS positioning in progress
D : DGPS positioning in progress
N : Not positioning
5
6
5
6
7
8 9
5
6
7
8 9 10
A : GPS positioning in progress
D : DGPS positioning in progress
N : Not positioning
14-23
Section 14 Appendix/Reference Materials
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7
8
9
10
11
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13
14
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17
18
19
20
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27
付録
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