User's Manual

IDENTIFICATION

ID ISC.ANT1710/690 Crystal

Gate Wave -A/-B

Page 20 of 80

 If multiple gates are arranged at short distances (1-8m) from each other, they interfere with

each other. In this case, the readers for the individual gates must be synchronized and operat-

ed in one of the Reader Automatic Modes.

Fig. 11: Top view, capture area outside of the antenna gate

Direction

Minimum Distance

right, left (X=)

70 cm

front, behind (Y=)

30 cm

Table 3: Capture area, unintentional detection

To achieve three-dimensional reading of the tag in the reading area drawn above (

Fig. 10), the

following conditions must be fulfilled:

- The gate distance (GD) depends on the antenna configuration (see Table 5: ).

- The tags should be at least ISO card size (46 mm x 75 mm).

- The activation field strength of the tags should be less than or equal to 60 mA/m.

- The distance from tag to tag should be greater than 10 cm. If the tag to tag distance is reduced,

the gate distance GD must be reduced correspondingly. This applies in particular to distances

under 5 cm.

- The maximum number of tags (serial number or data) depends on the traverse speed with

which the tags are brought through the capture area of the gate (see Table 5: ). The number of

tags may be increased in the gate distance GD is correspondingly reduced and the maximum

speed adjusted accordingly.

- The antenna should be at least 50 cm away from metal parts.

- The minimum distance between the antennas of a gate and other antennas of RFID work

station or terminals (transmitting frequency 13,56 MHz) should be: