Globalsat ER-411 Specifications page 6

1
MSL Altitude
Units
1
Geoid Separation
Units
Age of Diff. Corr.
Diff. Ref. Station ID
Checksum
<CR><LF>
SiRF Technology Inc. does not support geoid corrections. Values are WGS84 ellipsoid heights.
Table B-3 Position Fix Indicator
Value
0
1
2
3
GLL-Geographic Position-Latitude/Longitude
Table B-4 contains the values for the following example:
$GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C
Table B-4 GLL Data Format
Name
Message ID
Latitude
N/S Indicator
Longitude
E/W Indicator
UTC Position
Status
Checksum
<CR><LF>
GSA-GNSS DOP and Active Satellites
Table B-5 contains the values for the following example:
$GPGSA,A,3,07,02,26,27,09,04,15,,,,,,1.8,1.0,1.5*33
Table B-5 GSA Data Format
Name
Message ID
9.0 meters
M meters
meters
M meters
second
0000
*18
Description
Fix not available or invalid
GPS SPS Mode, fix valid
Differential GPS, SPS Mode , fix valid
GPS PPS Mode, fix valid
Example Units
$GPGLL
3723.2475
n
12158.3416
W
161229.487
A
*2C
Example Units
$GPGSA
Page 6 of 13
ER-411
Null fields when DGPS is not used
End of message termination
Description
GLL protocol header
ddmm.mmmm
N=north or S=south
dddmm.mmmm
E=east or W=west
hhmmss.sss
A=data valid or V=data not valid
End of message termination
Description
GSA protocol header
Specifications are subject to be changed without notice.
Version 1.3.1