4. INSTALLATION
ACK: Acknowledge
$--ACK,xxx*hh<CR><LF> | |
| | |
| + ------------------------ | 2 |
+ | ----------------------------- | 1 |
1.Local alarm number(identifier)
2.Checksum
GNS:
$--GNS,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,c | --c,xx,x.x,x.x,x.x,x.x,x.x*hh<CR><LF> |
| | | | | | | | |
| | | | | +--- | 11 |
| | | | | +------ | 10 |
| | | | | +---------- | 9 |
| | | | | +-------------- | 8 |
| | | | | | | | +------------------ | 7 |
| | | | | | | + | ---------------------- | 6 |
| | | | | | + | ------------------------- | | 5 |
| | | | | + | ------------------------------ | | | 4 |
| | | + | ----- | +--------------------------------- | | | | 3 |
| + | ----- | +--------------------------------------------- | | | | | | 2 |
+ | ------------------------------------------------------------- | | | | | | | | 1 |
1.UTC of position
2.Latitude, N/S
3.Longitude, E/W
4.Mode indicator
5.Total number of satllite in use,00-99
6.HDOP
7.Antenna altitude, metres, re:mean-sea-level (geoid)
8.Geoidal separation
9.Age of differential data
10.Differential reference station ID
11.Checksum
4-16
