Garmin GPSMAP 17 Technical Specifications - Page 30

Browse online or download pdf Technical Specifications for Marine GPS System Garmin GPSMAP 17. Garmin GPSMAP 17 40 pages. Gps receiver/antenna
Also for Garmin GPSMAP 17: Installation Instructions Manual (16 pages), Installation Instructions Manual (12 pages), Installation Manual (16 pages), Reference Manual (1 pages), Technical Reference (30 pages), Installation Instructions Manual (17 pages), Installation Instructions Manual (19 pages), Declaration Of Conformity (1 pages), Quick Start Manual (16 pages)

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Garmin GPSMAP 17 Technical Specifications

The status bit field represents a set of booleans described below:

Bit

The unit has ephemeris data for the specified satellite.

The unit has a differential correction for the specified satellite.

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_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