9-5
When you install the tag, take into consideration the influence of back metal.
If there is any metallic material behind the tag, the communication range deteriorates. The characteristic of communication range dete-
rioration depending on the distance between the tag and back metal of tag (the same size as antenna) is shown below.
•
Model V670-H11
Model V670-D13F03
0
0
100
80
60
40
20
20
40
60
80
100
Distance between metal and tag (mm)
Communication range ratio (%)
0
20
40
60
80
100
Distance between metal and tag (mm)
Communication range ratio (%)
0
100
80
60
40
20
Antenna
Metal
Tag
Distance
between back
metal and tag
Communication
range
* Assume that the communication
distance without metal is 100%.
* Assume that the communication
distance without metal is 100%.
Metal: Aluminum
Metal: Iron
9-4 Influence of Back Metal of Tag (Reference)
Summary of Contents for V670-H11
Page 16: ...1 4...
Page 38: ...2 22...
Page 58: ...3 20...
Page 70: ...4 12...
Page 100: ...6 4...
Page 102: ...7 2 Unit mm 7 2 Outside Dimension...
Page 120: ...7 20...