GPSM001 Datasheet, PDF (7/20 Pages) rfsolutions.ltd – OEM GPS Receiver Module

OEM GPS Receiver Module
GPSM001
NMEA STANDARD MESSAGE SET SPECIFICATION
The XE1610-OEMPVT supports NMEA-0183. Brief descriptions of the output messages are provided below.
NMEA Standard Commands
RF Solutions receivers use the standard output messages listed in Table 1:
NMEA
GGA
GLL
GSA
GSV
RMC
VTG
ZDA
Message Description
Global positioning system fixed data
Geographic position – latitude/longitude
GNSS DOP and active satellites
GNSS satellites in view
Recommended minimum specific GNSS data
Course over ground and ground speed
Time & Date
Table 1. NMEA-0183 Messages
After a reset condition occurs, as defined above, the default setting for NMEA commands is GGA, GSA, GSV and RMC,
with update every second. This setting can be modified with the PXEMaNM manufacturer specific command defined
hereafter.
GGA —Global Positioning System Fixed Data
Description: This message reports the global positioning system fixed data, as shown in Table 2.
Name
Example
Units
Description
Message ID
$GPGGA
GGA protocol header
UTC Position
161229.487
hhmmss.sss
Latitude
3723.2475
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 xxx0
Satellites Used
07
Range 0 to 12
HDOP
MSL Altitude¹
1.0
Horizontal Dilution of Precision
9.0
Meters
Units
M
Geoid Separation¹
Meters
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
1_{does not support geoid corrections. Values are WGS-84 ellipsoid heights.}
Table 2. GGA Data Format
Value
0
1
2
3
Description
Fix not available or invalid
GPS SPS Mode, fix valid
Differential GPS, SPS Mode, fix valid
GPS PPS Mode, fix valid
Table 3. Position Fix Indicator
Example: The values reported in this example are interpreted as shown in Table 2:
$GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,
1.0,9.0,M, ,M, ,0000*18
DS031-2 Jan ‘04
©2003 RF Solutions Ltd, www.rfsolutions.co.uk
Tel [phone] Fax [phone]
Page 7