Siemens SIMATIC RF610T ATEX System Manual page 318

Antennas
6.6 SIMATIC RF650A
R R adiation diagram (circular) in the ETSI frequency band
Figure 6-43
318
Pattern of the vertical plane of the antenna
Pattern of the horizontal plane of the antenna
Directional radiation pattern of RF650A in the ETSI frequency band
System Manual, 06/2019, J31069-D0171-U001-A22-7618
SIMATIC RF600