You can use MapSource as a rough guide.
Use a DEM map, In Edit-Preferences-Routing-Route Style, change from "Use Auto-Routing" to "Use Direct Routes". Pick your points, then right click-Route Properties..., under "Via Points", click "View profile".
It's not custom built like the WUG one, but it works as a rough guide. Also, you can't add a height for your antennas.
Hope it helps