Siemens SIMATIC RF600 Series System Manual page 180

Antennas
6.1 Overview
Table 6- 2 Characteristics of the RF640A and RF642A antennas
Features
Material
Frequency band
Impedance
Antenna gain
VSWR (standing wave ratio)
Polarization
Radiating/receiving angle
Connector
Mounting type
Degree of protection
Permitted ambient temperature
Number of connectable anten-
nas per reader
RF650R
Max. radiated power
RF680R
Max. radiated power
RF685R
Max. radiated power
180
RF640A
865-868 MHz 902-928 MHz
4 dBi (7 dBic) 4.3 dBi (7.3 dBic)
Max. 1.25
RH circular
Horiz. level: 80° Horiz. level: 75°
Vertic. plane: 75° Vertic. plane: 85°
4x screws M4 (VESA 100 fastening system)
≤ 1360 mW ERP ≤ 2400 mW EIRP
≤ 2000 mW ERP ≤ 4000 mW EIRP
≤ 2000 mW ERP ≤ 4000 mW EIRP
PA 12, silicon-free
865-868 MHz
50 Ohm nominal
6 dBi
Max. 1.6
Horiz. level: 75°
Vertic. plane: 70°
RTNC coupling
IP67
-25 °C to +75 °C
1, 2, 3 or 4 antennas
≤ 2000 mW ERP
1, 2, 3 or 4 antennas
≤ 2000 mW ERP
1 antenna
≤ 2000 mW ERP
System Manual, 10/2016, J31069-D0171-U001-A19-7618
RF642A
902-928 MHz
7 dBi
Max. 1.4
Linear
Horiz. level: 80°
Vertic. plane: 70°
≤ 4000 mW EIRP
≤ 4000 mW EIRP
≤ 4000 mW EIRP
SIMATIC RF600