Siemens SIMATIC Ident RF622A ETSI Operating Instructions Manual page 16

Antenna patterns
5.1 Alignment of transponders to the antenna
Alignment
The following diagram shows the optimum alignment of the RF600 transponders to the
RF622A antenna.
Figure 5-2
16
Optimum alignment of transponders to the antenna
Operating Instructions, 11/2020, C79000-G8976-C601-01
SIMATIC RF622A