So historically and still to a extent today you use land marks.
E.G. “We are next to the three story building with the blue and green awning. The enemy is at NW 400 yards.” Another common method is to pop colored smoke. E.G. “We are next to the blue smoke” You then hope they get it right. Friendly fire in air support mission with these methods is absolutely something that happens.
Assuming it’s not being jammed you can also use GPS.
If you have a advanced attack aircraft like the F15E it will have something called a targeting pod. Which is a attached pod that has powerful cameras that provide a incredibly improved view. This drastically reduces the risk of friendly fire as the JTAC (Guy who directs the aircraft) can just wave a small flag or something like that and the aircraft can see it.
Latest Answers