GMM-U1 Datasheet, PDF (18/36 Pages) List of Unclassifed Manufacturers – GPS Module

GlobalTop Technology
Gmm-u1 Data Sheet
18 _{Ver. V0G}
GGA—Global Positioning System Fixed Data. Time, Position and fix related
data
Table-2 contains the values for the following example：
$GPGGA,064951.000,2307.1256,N,12016.4438,E,1,8,0.95,39.9,M,17.8,M,,*65
Table-2: GGA Data Format
Name
Example Units
Description
Message ID
UTC Time
Latitude
N/S Indicator
Longitude
E/W Indicator
Position
Fix
Indicator
Satellites Used
HDOP
MSL Altitude
Units
Geoidal Separation
Units
Age of Diff. Corr.
Checksum
<CR> <LF>
$GPGGA
064951.000
2307.1256
N
12016.4438
E
1
8
0.95
39.9
M
17.8
M
*65
GGA protocol header
hhmmss.sss
ddmm.mmmm
N=north or S=south
dddmm.mmmm
E=east or W=west
See Table-3
meters
meters
meters
meters
second
Range 0 to 14
Horizontal Dilution of Precision
Antenna Altitude above/below mean-sae-level
Units of antenna altitude
Units of geoid separation
Null fields when DGPS is not used
End of message termination
Value
0
1
2
Table-3: Position Fix Indicator
Description
Fix not available
GPS fix
Differential GPS fix
This document is the exclusive property of GlobalTop Tech Inc. and should not be distributed, reproduced, into any other format without
prior permission of GlobalTop Tech Inc. Specifications subject to change without prior notice.
Copyright © 2011 GlobalTop Technology Inc. All Rights Reserved.