Line of Sight Radio Tool

A tool fomerly LinkUI, now https://ispdesign.ui.com/#
demonstrating line of sight path on map and roughly how to use.
I use it for checking if theres a path for local repeaters and wheres a good place to locate etc.
Remember each time you make a change to adjust mast heights at either end to see the proper updated terrain representation.
Then slide the mouse back n forth and watch the line to work out where obstruction could be etc. Enjoy.