Interesting to research, deadly to download. If you see a forum post from 2011 claiming "Working link here (fixed)", close the tab. The GPS ghosts of 2009 do not need to be woken up.
Maximize your marine navigation performance with the latest J-nav GPS Analyzer software. This utility allows you to sync data from your J-nav hardware, perform system diagnostics, and update firmware to ensure accuracy on the water. J-nav Gps Analyzer Download--
: Overlay your track on a topographical map or satellite imagery. Interesting to research, deadly to download