Light and visibility 127
The infrared reflective windshield is coated and
reduces the build-up of heat in the vehicle inte‐
rior.
The coating shields the vehicle interior from
radio waves up to the gigahertz range.
Radio-controlled equipment, such as toll sys‐
tems, can only be mounted on areas of the wind‐
shield which are permeable to radio waves
1
.
Areas permeable to radio waves
1
are best visi‐
ble from outside the vehicle when the windshield
is illuminated using an external light source.