The Radio Site Display uses Google Earth to show an aerial view of the Earth with overlays providing the locations of amateur radio beacons, amateur stations, Field Day sites and other information. The view is customised for each user, centred on the user's own location.
These articles provide step-by-step instructions for modifying a rig to use an external Reference oscillator.
Presentations from GippsTech 2008 giving modification details for other rigs.
Interfaces for the Yaesu FT-817.