itraxctl 1 23 Oct 2006 itraxctl Control the modes of an iTrax GPS itraxctl -n -b -s speed serial-port itraxctl switches an iTrax GPS to NMEA or iTalk Binary mode. Port speed and protocol can be set independently of each other. You will probably need to be root to run this program, as the serial device it uses is normally privileged. The program accepts the following options: -b Force GPS into binary mode. This option overrides any previous -n options. -n Force GPS into NMEA mode. This option overrides any previous -b options. -s Set port speed. iTrax chipsets support speeds of 4.8 - 921.6 kbps though the *NIX drivers might not run faster than 230.4 kbps. Fastrax recommends that a serial port not be run slower than 115.2 kbps when the iTalk protocol is selected. Setting NMEA mode from binary mode does not yet work. This is being actively investigated. Integrated data logging control is planned but not yet supported. gpsd8, gps1, libgps3, libgpsd3, gpsprof1, gpsfake1, gnuplot1. Chris Kuethe chris.kuethe@gmail.com. This code is part of the gpsd toolset; there is a project page for gpsd here.