Siemens SIMATIC RF600 Series System Manual page 185

Antenna diagram for RF685R (FCC)
The following radiation diagrams show the directional characteristics of the internal antenna
of the RF685R (FCC) reader. For the spatial presentation of the directional characteristics,
the horizontal plane (azimuth section) as well as the vertical plane (elevation section) must
be considered. This results in a spatial image of the directional radiation pattern of the
antenna.
Figure 5-39 Reference system
SIMATIC RF600
System Manual, 11/2018, J31069-D0171-U001-A21-7618
Readers
5.5 SIMATIC RF685R
185