GT Series

Yuechung International Corp. (YIC)

6

URL: www.yic.com.tw

E-mail: service@yic.com.tw

Y

YI

IC

C

GGA-Global Positioning System Fixed Data

Table 2 contains the values of the following example:

$GPGGA, 161229.487,3723.24751,N, 12158.34160,W, 1,07,1.0,9.0,M.0000*18

Table 2: GGA Data Format

Name

Example

Units

Description

Message ID

$GPGGA

GGA protocol header

UTC Position

161229.487

hhmmss.sss

Latitude

3723.24571

ddmm.mmmmm

N/S indicator

N

N=north or S=south

Longitude

12158.34160

ddmm.mmmmm

E/W Indicator

W

E=east orW=west

Position FixIndicator

1

See Table 2-1

Satellites Used

07

Range 0 to 12

HDOP

1.0

Horizontal Dilution of Precision

MSLAltitude

9.0

meters

Units

M

meters

Geoids Separation

meters

Units

M

meters

Age of Diff.Corr.

second

Null fields when DGPS is not Used

Diff.Ref.Station ID

0000

Checksum

*18

<CR><LF>

End of message termination

Table 2-1: Position Fix Indicators

Value

Description

0

Fix not available or invalid

1

GPS SPS Mode, fix valid

2

Differential GPS, SPS Mode, fix valid

3

GPS PPS Mode, fix valid