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SECTION 7
Reference Data
RFID System
User's Manual
SECTION 7
Appendices
Reference Data
Antenna Mounting Precautions
V680-HS51
Effect of Surrounding Metals on the Antenna (Reference)
When embedding the Antenna in metal, be sure the metal does not extend beyond the tip of the
Antenna.
Mutual Interference between Antennas (Reference)
To prevent malfunctioning due to mutual interference when using more than one Antenna, leave
sufficient space between them as shown in the following diagrams.
² Installing the Antennas Facing Each Other ² Installing the Antennas in Parallel
Surrounding metal
(steel)
Surrounding metal
(steel)
40 mm min.
7 mm min.
R18 min.
Antenna
120 (±60)-mm dia. min.
12-mm dia.
Communications
distance reduced
by approx. 50%.
Do not bend the cable into a curve tighter
than 18 mm in radius.
If the metal around the Antenna reaches the communication surface,
the communications distance will be reduced by approx. 50%
compared with mounting to a non-metallic surface.
Antenna
80 mm min.
80 mm min.
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