With GPS a location (longitude and latitude) can be stored prior to commencing other techniques. Later on when analysing the data the location can be extrapolated and optionally plotted on a map.
The majority of GPS units available will be compatible with the core running the GPS unit has to be able to connect via a serial link to the PC also the GPS output format be set to NMEA. When adding the GPS technique to the sequence list Comm Port and Baud Rate (usually 4800) should be set to match the GPS unit.
Analysing Locations
A Map can be scanned into the computer (Bitmap - .Bmp or Jpeg - .Jpg) and be used to plot the location:
To add a Map
click on the ‘Assign Maps’ button
and press the
‘Add’ button on the Assign Maps page. When a map has been added select it
in the Maps list section and set the maximum / minimum longitude and latitude
settings for the edges of the map. After map(s) have been added the program will
automatically search them to find one suitable to plot the location onto (location is
shown as a slowly flashing green cross). Maps only have to be added once and are
remembered through subsequent analysis loads.