Siemens XT55 4 Software interface

XT55 AVL Software Instructions User’s Guide
Confidential/Preliminary s
mo b i l e
XT55_avl_ug_V01 Page 20 of 20 15.03.2004
4 Software interface
The module XT55 is capable of outputting data in the NMEA-0183 format as defined by the
National Marine Electronics Association (NMEA), Standard for Interfacing Marine Electronic
Devices, Version 2.20, January 1st, 1997.
4.1 NMEA output messages
The table below shows all NMEA output messages supported by the module XT55 as well as
a brief description of each output message.
Option Description
GGA Time, position and fix type data.
GLL Latitude, longitude, UTC time of position fix and status.
GSA GPS receiver operating mode, satellites used in the position s olution and DOP
values.
GSV The number of GPS satellites in view satellite ID num bers, elevation, azimuth and
SNR values.
RMC Time, date, position, course and speed data.
VTG Course and speed inform ation relative to the ground.