Choosing, Installing, and Removing Tags
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4. Position the tag over the correct area of the windshield, making sure that the tag
and reader orientation are the same (horizontal or vertical).
5. Press the tag firmly against the glass.
Removing Interior ATA Tags
To remove an interior ATA-protocol tag installed using hook-and-loop material,
simply pull the tag away from the windshield.
To remove an interior ATA-protocol tag installed using double-sided tape, slowly pry
off the tag with a thin tool, such as a putty knife.
Installing ATA License Plate Tags
Metallized coatings on some vehicle windshields and windows absorb the RF energy
emitted by the Encompass 4 Reader, thus causing tags to be misread. Use exterior
LPTs on vehicles with metallized coatings on windshields and windows.
Use license plate installation techniques to install tags on the exterior of vehicles that
have this type of window coating.
Note: The read zone of an overhead Encompass 4 Reader should be adjusted accord-
ingly when an exterior tag is installed on a license plate, or the read zone will be
reduced.
Exterior tags may be installed on metal or plastic bumpers using the existing license
plate bracket and hardware.
The tag can be mounted on the front bumper where the license plate is normally
located or mounted directly to the front license plate or license plate bracket. Once
installed, the face of the tag should be pointing directly forward or slightly upward. If
the bumper, license plate, or license plate bracket has any material that overhangs the
tag, the tag will not function properly.
Required Materials
You need the following supplies to install license-plate mounted tags:
• Exterior LPT
• Two 0.25-inch (.63 cm) bolts and nuts (user-supplied). Length of the bolts can
vary depending on vehicle model.
• Screwdriver and wrench (user-supplied)
• 0.25-inch (.63 cm) spacers or washers (if needed). Thickness of spacers can vary
depending on vehicle model.
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