GPS Data Logger Software - BT747

It can be that BT747 does not include the serial drivers for your system. In that case, go to http://rxtx.qbang.org/ToyBox to look if there are binaries for your system. If there are, they couild be included in the BT747 distribution or made available through the web application. Contact the author of BT747 for that: through the contact form on http://www.bt747.org, through a feature request on sourceforge or through e-mail (see the application).