EndRun Tempus LX GPS, User Manual

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T e m p u s L X G P S U s e r M a n u a l 82
A P P E N D I X F
83 T e m p u s L X G P S U s e r M a n u a l
S Y S P L E X O R S E R I A L T I M E O U T P U T
GLL (Position Data)
The GLL sentence identifies the position fix, time of position fix, and status. An example is below:
$GPGLL,3827.030,N,12244.020,W,173423.00,A,A*34<CR><LF>
Msg ID $GPGLL
Field 1 3827.030 Latitude in ddmm.mmm
Field 2 N Direction of latitude (N=north, S=south)
Field 3 12244.020 Longitude in dddmm.mmm
Field 4 W Direction of longitude (W=west, E=east)
Field 5 173423.00 UTC time of fix (hhmmss.ss)
Field 6 A A=data valid, V=data not valid
Field 7 A Fixed text “A” shows that mode is autonomous
Checksum *34
Msg End <CR><LF>
GSA (GPS DOP and Active Satellites)
The GSA sentence identifies the GPS position fix mode, the Satellite Vehicles (SVs) used for navi-
gation, and the Dilution of Precision (DOP) values. DOP is an indication of the effect of satellite
geometry on the accuracy of the fix. An example is below:
$GPGSA,A,3,18,3,22,6,9,14,19,32,,,,,2.0,1.2,1.6*10<CR><LF>
Msg ID $GPGSA
Field 1 A Fixed text “A” shows auto selection of 2D or 3D fix
Field 2 3 Fix type (1=fix not available, 2=2D fix, 3=3D fix)
Field 3 18 PRN of SV used for fix on channel 1 (empty if no SV)
Field 4 3 PRN of SV used for fix on channel 2 (empty if no SV)
Field 5 22 PRN of SV used for fix on channel 3 (empty if no SV)
Field 6 6 PRN of SV used for fix on channel 4 (empty if no SV)
Field 7 9 PRN of SV used for fix on channel 5 (empty if no SV)
Field 8 14 PRN of SV used for fix on channel 6 (empty if no SV)
Field 9 19 PRN of SV used for fix on channel 7 (empty if no SV)
Field 10 32 PRN of SV used for fix on channel 8 (empty if no SV)
Field 11 empty field PRN
Field 12 empty field PRN
Field 13 empty field PRN
Field 14 empty field PRN
Field 15 2.0 PDOP (position dilution of precision)
Field 16 1.1 HDOP (horizontal dilution of precision)
Field 17 1.6 VDOP (vertical dilution of precision)
Checksum *10
Msg End <CR><LF>