Know the location of a satelite? Need to know if it is reachable from where you are? This will do it. Enter Longtitude, Latitude, and Height and it will plot the Earth from the View of the satalite.
From the ReadMe "Upload and download waypoints, routes, track logs and satellite almanac data. User selectable map datum, allowing coordinate conversions to the same set of 106 map datums within the GPS 40 and the GPS 45. User selectable output file position format, with latitude and longitude in degree/minute/second, degree/decimal minute, or decimal degree format, or UTM, British, German, Irish, Swedish, or Swiss grid coordinates."
Monitors packet activity and keeps track of what is going on. It draws a graphical map showing who is talking to who and displays statistics of all current stations and keeps a running tally of activity.