User Manual

IUH-F192-V1-*
Product Description
2022-11
13
Figure 3.1
3.2.6 Dense Reader Mode (DRM)
Europe
A special operating mode for read/write tags in accordance with the specification EPC Gen 2
(ISO/IEC 18000-63) allows several read/write devices to be operated close to each other simul-
taneously without interference.
In accordance with EN 302208, the read/write device uses only channels 4, 7, 10, and 13 in
this mode for transmission (read/write head read/write tag communication path). The trans-
mission power is a maximum of 2 W
erp
in accordance with EN 302208.
Figure 3.2
The response from the read/write tag appears via the frequency offset, which is achieved by
the modulation used in this mode on the two adjacent channels. Due to the high level differ-
ence between the transmission channels and the response channels, this technology offers
major benefits for reusing frequencies.
0 %
10 %
20 %
30 %
40 %
50 %
60 %
70 %
80 %
90 %
100 %
Material
underground
Material between transponder and
read / write device
Foam material
Film
Cardboard (dry)
Cardboard (wet)
Wood (dry)
Glass
Metal
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2.0
865.0 868.0865.7 867.5 MHz
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Channel
866.9866.3