Siemens SIMATIC RF600 Series System Manual page 189

6.2.6.2 Antenna pattern ETSI
Directional radiation pattern Europe (ETSI)
The directional radiation pattern is shown for nominal alignment and a center frequency of
866.3 MHz. The nominal antenna alignment is given when the antenna elevation is provided
as shown in the following figure.
Figure 6-5 Reference system
The half-power beamwidth of the antenna is defined by the angle between the two -3 dB
points. Which range (in %) corresponds to the dB values in the patterns can be obtained
from this table .
Note that the measurements presented graphically below were carried out in a low-reflection
environment. Deviations can therefore occur in a normally reflecting environment.
SIMATIC RF600
System Manual, 10/2016, J31069-D0171-U001-A19-7618
Antennas
6.2 RF620A antenna
189