Aloha,
This rig was used for Aircraft Detection. (Far-Field Monitors)?
poor bastard probably lost an eardrum using that
I don’t know, does it seem like the last bend of each collection tube is pointed at the wrong point of the reflecting dish? 
My mother in law could do with one of those…
That looks like a very good way to kill yourself 
My mother in law could do with one of those too 