Siemens SIMATIC RF610T ATEX System Manual page 285

Figure 6-28
SIMATIC RF600
System Manual, 06/2019, J31069-D0171-U001-A22-7618
Pattern of the vertical plane of the antenna
Pattern of the horizontal plane of the antenna
The RF640A directional radiation pattern in the FCC frequency band, polarization axis of
the transponder, and axis of symmetry of the antenna are parallel to each other
Antennas
6.4 SIMATIC RF640A
285