9500i Question

[BlinderGuy]

Wondering why the front of the 9500i is bubbled instead of flat like other RD.

[MEM-TEK]

Wondering why the front of the 9500i is bubbled instead of flat like other RD.

The cylindrical condenser lens reduces phase shift for the radar entering the antenna horn, and gives the horn a bit more sensitivity for on-axis radar.

[TSi+WRX]

^ I thought that was the laser sensor, to try to give it a wider field-of-view and to play a trick with optics, to try to increase detection?