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4-2 Influence of Peripheral Metals during Antenna Installation
4-2
4-3
4-2 Influence of Peripheral Metals of Antenna Installation Site
Consider the influence of peripheral metals when installing the Antenna.
Peripheral metals may greatly lower the communication distance for the Antenna.
V720-HS04 to V720-D52P30/V720-D52P40
• Influence of back metals
The following diagram shows the percentage of reduction in communication distance when a
metal is mounted on the back of the Antenna.
The horizontal axis in the diagram refers to the distance between the back of the Antenna and
the metal plate, and the vertical axis refers to the relative communication distance on the
assumption that the communication distance without mounting metals is 100, that is, the
reduced percentage of the communication distance.
Influence of Peripheral Metals
Peripheral metals may greatly lower the communication distance of the Antenna. Verify the communication
performance and ensure it has enough read range beforehand if there is any metal object near the antenna
installation site.
Influence of back metals
Distance between th
e back of the Antenna and the metal plate Y(mm)
Reduced percentage of
the communication distance (%)