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6
Instructions
To avoid any reduction of the reading distance of the reader, the reader must not be brought next to a
metal surface (e.g. don't put metallic sticker to the reader). This could lead to a significant change of
the properties of the antenna circuit, which in turn reduces the reading range considerably or causes
reading holes!
To get reliable readings, the distance between reader and transponder must be within the specified read-
ing volume.
The reading characteristic in front of the reader is not isotropic. It depends also strongly on the orienta-
tion between Reader and Transponder. To get the maximum reading distance, the orientation between
reader and transponder must be well suited.
To get a reliable readings or writings, the time of transponder while crossing the sensitive area of the
antenna must be coordinated to the data transfer characteristics of transponder
In general the time depends on the speed of the transponder, the size of the transponder and the way the
transponder is mounted on the vehicle and must be verified by field tests.
Environmental electromagnetic noise may also reduce the read and write range considerably.
Arrangement to eliminate such troubles must be done specific to the application by the help of engineers
of the manufacturer.
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