[Curtis]

So, when you look at Penang Island, you notice something very interesting.

The vertical yellow line is north - south, on the eastern side of the island. The butterworth PSR is top right. The red and light green lines through the yellow line, going south west from the radar, are the "look angles" for the "white circle".

@ventus45
Wow - i do understand it right: If the Malacca strait path is switched by some 70° leftwards to a path via Medan, as you have thought since a long time, the hill on Penang Islands fits with the white circle, which otherwise is not explainable (only if whole Lido pic was just invented)?