Shytorque
It was the glideslope aerial that was on the checker board hill, the localiser lower down at the end of a sports field, I think. I remember spending some time on the top of the checker board markings (not in the park!, having found a hold to climb through) watching approaches onto rwy13 from the IGS.
The technique of the Cathay locals seemed to be to fly a little to the north (left) of the localiser to give themselves a little extra room for the turn onto finals, but I'm sure we've all seen some of the clips where some pilots didn't quite get it right
