What range are you at? That never works for me. Also that's not a radar its a launcher, how is it homing?
If I need to designate targets that's fine but then I have another problem, in SF2 for whatever reason designating ground targets is far more hit or miss than in SF1. Even if its a mission where I have to strike a particular asset I rarely can light it up until after I have passed it closely. Classing taccom for a vector doesn't help illuminate it either like it does for hostile aircraft. Runways and such are fine, follow the waypoint and hit that runway, but if its a bunker, which one? Or if its SEAD and I have mavericks I have to risk ground fire just to get the targets to designate, all the while i'm furiously mashing on e and r trying to pull them up.
Is there a setting where I can adjust this?