In such cases special mounting instructions must be followed or an exterior transponder.
Roof mounted transponder.
Choose where to mount the exterior transponder either above or below the license plate.
Many of today s luxury and higher end cars use metal oxides in their windshields and that diminishes the signals from regular transponders.
Mounting instructions the roof mounted transponder is recommended for large commercial vehicles such as trucks buses coaches and rvs.
The preferred location is between the exposed edge of the windshield roof line and the rear view mirror post as long as the clearances in fig.
If the license plate option is unviable then a roof mounted transponder can be utilized.
Prior to starting each trip it is the driver s responsibility to indicate the number of occupants in the vehicle by moving the switch to the appropriate setting 1 2 3.
Fme transponders programmed for rooftop must be mounted on the roof of the vehicle.
Fme transponders cannot be used where local regulations prohibit externally mounting transponders on the roof of the vehicle.
The roof mounted transponder is recommended for large commercial vehicles such as trucks buses coaches and rvs.
Exterior transponder mounted below license plate.
Exterior transponder mounted above license plate.
2 can be maintained.
The mounting location must provide direct line of sight communication between the transponder and the toll facility s overhead antenna.