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IUH-F190-V1-*, IUT-F190-R4-V1*
Product Description
100 %
90 %
80 %
70 %
60 %
50 %
40 %
30 %
20 %
10 %
0 %
Material between transponder and
read / write head
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 heads to be operated close to each other simul-
taneously without interference.
In accordance with EN 302208, the read/write head uses only channels 4, 7, 10, and 13 in this
mode for transmission (read/write head
sion power is a maximum of 2 W
W
erp
2.0
865.0
Figure 3.1
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.
ERP
1
2
3
4
5
6
865.7
Cardboard (dry)
Cardboard (wet)
Wood (dry)
Glass
Metal
read/write tag communication path). The transmis-
in accordance with EN 302208.
7
8
9
10
11
866.3
866.9
Foam material
Film
Material
underground
12
13
14
15
Channel
867.5
868.0
MHz
15
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