Garmin GPSMAP 17 Spécifications techniques - Page 30

Parcourez en ligne ou téléchargez le pdf Spécifications techniques pour {nom_de_la_catégorie} Garmin GPSMAP 17. Garmin GPSMAP 17 40 pages. Gps receiver/antenna
Également pour Garmin GPSMAP 17 : Manuel d'instructions d'installation (16 pages), Manuel d'instructions d'installation (12 pages), Manuel d'installation (16 pages), Manuel de référence (1 pages), Référence technique (30 pages), Manuel d'instructions d'installation (17 pages), Manuel d'instructions d'installation (19 pages), Déclaration de conformité (1 pages), Manuel de démarrage rapide (16 pages)

Garmin GPSMAP 17 Spécifications techniques
The status bit field represents a set of booleans described below:
Bit
0
The unit has ephemeris data for the specified satellite.
1
The unit has a differential correction for the specified satellite.
2
The unit is using this satellite in the solution.
This pattern is repeated for all 12 channels for a total of 12 X 7 bytes = 84 (0x54) bytes :
typedef
struct
{
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
cpo_sat_data
} cpo_all_sat_data
The RS-232 Packet for the Satellite Record looks like:
- 0x10
(DLE is first byte)
- 0x72
(Record ID – single byte)
- 0x54
(Number of data bytes – single byte)
- cpo_all_sat_data
- 0x##
(2's complement of the arithmetic sum of the bytes between the delimiters)
- 0x10
(DLE)
- 0x03
(ETX is last byte)

Position Record

- 0x10
(DLE is first byte)
- 0x33
(Position record identifier)
- 0x40
(Size of data)
- cpo_pvt_data
(See description below)
- one-byte checksum
(The addition of bytes between the delimiters should equal 0)
- 0x10
(DLE)
- 0x03
(ETX is last byte)
typedef struct
{
float
alt;
float
epe;
float
eph;
float
epv;
int
fix;
double
gps_tow;
double
lat;
190-00228-20
Meaning when bit is one (1)
GPS 16/17 Technical Specifications
Page 26
Rev. C