Siemens SIMATIC RF610T ATEX System Manual page 347

R R adiation diagram circular in the ETSI frequency band
Figure 6-56
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
Directional radiation pattern of RF680A in the ETSI frequency band
Antennas
6.8 SIMATIC RF680A
347