Checkpoint Systems Inc. FISOLRR Manuale Utente
I L S O p e n P l u s E x i t A n t e n n a I n s t a l l a t i o n : T e s t i n g t h e G a t e A n t e n n a
1-25
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Metal near the antennas is detuning or interfering with them.
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The antennas are not properly tuned.
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Noise level too high (Vmax - Vmin 20 mV)
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Tag too insensitive, detuned or defective
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Reader improperly configured (transmitting power, transponder type, modulation,
transponder parameters, etc.).
transponder parameters, etc.).
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A cable is defective or has a poor contact.
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Reader, Power Splitter or antenna defective.
Tag Detection
The antenna configuration described allows detection of a tag moving horizontally
through the capture area of the gate. The tag orientation is non-critical. The tags are
detected along a horizontal axis of motion in certain regions within the antennas. The area
of detection depends on the tag orientation.
through the capture area of the gate. The tag orientation is non-critical. The tags are
detected along a horizontal axis of motion in certain regions within the antennas. The area
of detection depends on the tag orientation.
The size of the three-dimensional capture area of the antennas is shown below.
Figure 1.24
Gate Distance (GD)
Note: The entire capture area of the antenna is larger than the three-dimensional area shown in the
drawing. This means there are tag orientations in which the tag can be detected outside the capture
area. If multiple gates are arranged with short distances between each other, these will mutually
interfere with each other. The Readers for the respective gates must then be synchronized.
To achieve three-dimensional capture of the tag in the capture area drawn above, the
following conditions must be met:
following conditions must be met:
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The gate distance (GD) depends on the antenna configuration.
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The activation field strength of the tags should be less than or equal to 80 mA/m.
GD