Specifications

GGA Sentences

This displays GPS fix data.

Example of output:

$GPGGA,095635.00,3540.05802,N,13921.63542,E,1,06,1.54,212.5,M,39.2,M,,*59

Table 2.72

Item Description Validity

$GPGGA Yes

095635.00 UTC time is displayed in the hhmmss.ss format. Yes

3540.05802 Displays latitude. The value at the left shows a longitude of 35

degrees and 40.05802 minutes.

Ye s

N N and S indicate north and south respectively. Yes

13921.63542 Displays longitude. The value at the left shows a longitude of 139

degrees and 21.63542 minutes.

Ye s

E E and W indicate east and west respectively. Yes

1 Indicates GPS accuracy.

0 = no signal

1 = independent positioning

Ye s

06 Indicates the number of satellites from which a signal is being

transmitted.

Ye s

1.54 Shows HDOP. The HDOP is the GPS coefficient of horizontal

dilution. The smaller this value becomes, the more accurate the

position.

Ye s

212.5 Indicates the altitude above sea level. Yes

M Altitude unit: M = meters Yes

39.2 Indicates the altitude from the WGS 84 Ellipsoid. Yes

Altitude unit: M = meters Yes

Age of D-GPS data (seconds) No

DGPS base station ID number. No

*59 Checksum Yes

Note:

“Yes” indicates the presence of the valid output.

“No” indicates the absence of the valid output.