Siemens SIMATIC RF600 Series System Manual page 47

4.3.5 Reciprocal influence of read points
Antenna alignment and antenna spacing with external antennas
The minimum distance required between antennas that use the same frequency and that are
connected to different readers depends on the set maximum radiated power and the antenna
alignment.
Figure 4-3
Table 4- 1 Antenna alignment and minimum antenna spacing with external antennas
Antenna Antenna alignment
configuration
A Back to back
B Pointing at each other
E Next to each other
SIMATIC RF600
System Manual, 10/2016, J31069-D0171-U001-A19-7618
Antenna spacing for different readers/antennas and identical frequencies
with RF660A
Minimum distance required = D
RF650R/RF680R/RF685R
0.5 m
2.0 m
0.8 m
RF600 system planning
4.3 Antenna configurations
with RF650A/RF680A
0.3 m
2.0 m
0.5 m
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