Yuechung International Corp. (YIC)

7

URL: www.yic.com.tw

E-mail: service@yic.com.tw

Y

YI

IC

C

YIC5 Series

GGA--- Global Positioning System Fixed Data

Table 4.2 contains the values for the following example:

$GPGGA,060406.000,2503.7148,N,12138.7451,E,2,17,0.71,116.7,M,15.3,M,0000,0000*6D

Table4. 2 GGA Data Format

Name

Example

Units

Description

Message ID

$GPGGA

GGA protocol header

UTC Time

060406.000

hhmmss.sss

Latitude

2503.7148

ddmm.mmmm

N/S indicator

N

N=north or S=south

Longitude

12138.7451

dddmm.mmmm

E/W Indicator

E

E=east or W=west

Position Fix Indicator

2

See Table 3.3

Satellites Used

17

Range 0 to 33

HDOP

0.71

Horizontal Dilution of Precision

MSL Altitude

116.7

mters

Units

M

mters

Geoid Separation

15.3

mters

Units

M

mters

Age of Diff. Corr.

0000

second

Null fields when DGPS is not used

Diff. Ref. Station ID

0000

Checksum

*6D

<CR> <LF>

End of message termination

Table4.3 Position Fix Indicators

Value

Description

0

Fix not available or invalid

1

GPS SPS Mode, fix valid

2

Differential GPS, SPS Mode, fix valid

3-5

Not supported

6

Dead Reckoning Mode, fix valid