I tried to figure out Radio Navigation in the F5, i did everything like in chucks guide and used selfmade beacons and the ones that are already in the 1.5 map yet the triangle did not move.
In 2.1 i setup a beacon as well and it workes.
I attached some missions, one is 1.5 the other is 2.1, it works in 2.1!!!
Note: just check the freq. in the mission editor, so you know what freq. to tune in to.
Has someone the same issue? beacon2.1.miz beacon1.5.miz