Siemens SIMATIC RF610T ATEX System Manual page 242

Antennas
6.2 SIMATIC RF615A
D D irectional radiation pattern ETSI on metallic mounting surface (15 cm x 15 cm)
Figure 6-6
242
Pattern of the vertical plane of the antenna
Pattern of the horizontal plane of the antenna
Directional radiation pattern RF615A ETSI on metallic mounting surface
System Manual, 06/2019, J31069-D0171-U001-A22-7618
SIMATIC RF600