GLOBALSAT GT-100 - Manual (Page 10)

While ND-100S is plugged into the USB PORT and implement ND-100S AP on the NB, we can
start ND-100S Log function.
In SETUP portion, click
,
then you can choose file folder to
save log file. For example, Desktop.
Click , bullet will change to . ND100S will start logging NMEA.
Click , bullet will change to . ND100S will stop loggin NMEA.
If you want to change Log File
format, Just click function tab Tools
to change it to KML format. (Default
setup is NMEA Txt format)