GT-1612-MTBD
GPS&Beidou Receiver Module
www.gotop-zzu.com
Page 31 of 35
Revision: V2.0.1-January 2015
The Gotop GT-1612-MTBD Initialization location mode for GPS&Beidou dual mode,
Output data
：
$GNRMC. $GNGGA. $GPGSV. $BDGSV. $GPGSA. $BDGSA. $GNGLL. $GNVTG
8.2 NMEA-0183 data Detailed field
8.2.1 GGA-Global Positioning System Fixed Data
$xxGGA, 161229.487,3723.2475,N, 12158.3416,W, 1,07,1.0,9.0,M.0000*18
Table 18: GGA Data Format
Name
Example
Units
Description
Message ID
$xxGGA
GGA protocol header
UTC Position
161229.487
hhmmss.sss
Latitude
3723.2457
ddmm.mmmm
N/S indicator
N
N=north or S=south
Longitude
12158.3416
dddmm.mmmm
E/W Indicator
W
E=east or W=west
Position Fix Indicator
1
See Table 18-1
Satellites Used
07
Range 0 to 12
HDOP
1.0
Horizontal Dilution of Precision
MSL Altitude
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
Check sum
*18
<CR> <LF>
End of message termination
Table 18-1: Position Fix Indicators
Value
Description
0
Fix not available or invalid
1
GPS&Beidou SPS Mode, fix valid
2
Differential GPS&Beidou, SPS Mode, fix valid
3
GPS&Beidou PPS Mode, fix valid
