Traccar Client Protocol

This is a protocol used by old version of Traccar Client. New versions use OsmAnd protocol.

Protocol uses TCP/IP as a transport layer. Messages are separated by carriage return and line feed characters (\r\n).

Login (sent once TCP connection is establshed):

$PGID,123456789012345*0F\r\n (where 123456789012345 - IMEI or other unique id)

Simple location report format is just a standard NMEA GPRMC sentence:


Extended location report format: