Glad,
Thanks for the thanks. To pick up on your follow on questions...
The MADL antennae are hexagonal arrays that use electronic beam steering. There are at least five located on the airframe (two are easily visible on the aft ends of the fairings at the base of each fin). The MADL systems establish the link using the GPS co-ordinates that are shared between the aircraft, and you are correct - the differential calculation using the two (moving) end points is then used to keep the beams lined up. It's certainly an RF system.
The system is designed to support F-35 operations at relatively close ranges (less than 20km) with high data rates. I can't say much more because I don't know much more. I do know that the system works, and is an important element of F-35 operational assumptions.
Yes, F-35 also uses Link 16.
Hope this helps,
Best Regards
Engines