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9-1 Influence of Metal of Antenna (Reference)
• Model V670-H51Q
Model V670-D13F01 (H)
Metal: Iron
100
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
Distance between the sensing head of antenna and metal (mm)
Metal: Alminum
100
90
80
70
60
50
40
30
20
10
0
0
1
2
3
4
Distance between the sensing head of antenna and metal (mm)
Metal
Antenna
Distance between
metal and sensing
head of antenna
9-2
5
6
7
8
9
10
11
12
5
6
7
8
9
10
11
12
Tag
Communication
range
* Assume that the communication distance
13
14
15
without metal is 100%.
* Assume that the communication distance
13
14
15
without metal is 100%.
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