GPS options:
-gpsType <standard|novatel|trimble>	Select GPS device type (default: standard)
-gpsPort <gpsSerialPort>	Use the given serial port (default: /dev/ttyS1)
-gpsBaud <gpsSerialBaudRate>	Use the given serial Baud rate (default: 9600)
-remoteGpsTcpHost <host>	Use a TCP connection instead of serial, and connect to remote host <host>
-remoteGpsTcpPort <host>	Use the given port number for TCP connection, if using TCP. (default 8103)
