User's Manual

Description of the read-write heads
6 – 4 D101583 0207 BL ident
Read-write head antenna
The antenna consists of an air coil. It is used to transfer data and
energy between the data carrier and the read-write head. The
antenna generates an electromagnetic field which is detected by the
data carrier within the transfer zone. A data and energy transfer is
only possible as long as the data carrier is located in this field
(Figure 2).
Figure 2
Transfer zone