Feig Electronic OBID ID ISC.ANT310310-A Montageanleitung Seite 32

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OBID i-scan
Please also observe the following recommendations:

Up to a distance of 50 cm, the antenna cable should always be lead away from the antenna
vertically and installed permanently.

In order to obtain an optimum reading range, the antenna connection cable should not be
shortened or extended. If an extension is absolutely necessary, please use a 50  cable with a

length of (half the wavelength at 13,56 MHz, RG58=7,20 m). However, this may lead to a
2
minor sensitivity reduction (approx. 2 cm reading range / extension).

Please keep a minimum distance of 30 cm between the antenna cable and all parallel, power
cables.
After the installation has been completed, an operational check can be performed with the help of
the reader and a smart label. With a transmitting power of 4W and a label size of 75 mm x 46 mm
(ISO-card size) the reading range in the centre of the antenna should be approx. 50 cm – 60 cm.
Otherwise, the following points should be reviewed:

Is the antenna installed near metal?

What is the difference between Umax-Umin of the Noise Level? The difference of the Noise
Level should be less than 20 mV (see ISO Start, Test & Measurement).
 Is the matching of the antenna of the impedance to the impedance of 50  okay?

Can be checked with the help of an SWR – Meter. See Chapter 4.6 How to measure the
voltage standing wave ratio (VSWR).

Do the reader signal a "RF-Warning"? See reader command "[0x6E] Reader Diagnostic"

The distance from tag to tag should be greater than 8 cm. If the tag to tag distance is reduced,
losses at the read range can be expected. This applies in particular to distances under 5 cm.

If multiple gates are operated at the same time at a distance of less than 8 m, the Readers
must by synchronized. Otherwise, losses at the read range can be expected
See Application Note: "Synchronizing RFID Long Range Readers using the Reader Synchroni-
zation Interface" (N11200-3e-ID-B.pdf).
FEIG ELECTRONIC GmbH
Installation
Page 32 of 46
ID ISC.ANT310/310-A
M90401-2de-ID-B.doc