IRF1000 series
Instruction manual v1.3
14
© ads-tec Industrial IT GmbH • Heinrich-Hertz-Str.1 • 72622 Nürtingen • Germany
WARNING
Radio interference and possible damage to health due to exceeding the permitted
transmission power!
The maximum permitted field strength can be exceeded when using directional
antennas with a high level of antenna gain.
•
Comply with the
maximum permitted signal strength (EIRP)
as per the
national or local regulations (see calculation example for EIRP).
•
Observe the regulations and standards which apply at the installation site
(e.g. the standards for antenna erection VDE 0855 and for lightning
protection VDE 0185-305).
•
Always have the planning, installation and acceptance of antenna systems
carried out by a specialist with electro-technical qualifications.
•
Per the requirements of the U.S. Federal Communications Commission
(FCC) and the Canadian ISED (Industry Canada), the
antenna gain
(including power losses) must not exceed the following values when
operating in North America:
LTE
Band 2 (1850–1910 MHz) 6 dBi
Band 4 (1710–1755 MHz) 6 dBi
Band 5 (824–849 MHz)
6 dBi
Band 7 (2500–2570 MHz) 9 dBi
Band 12 (699–716 MHz) 6 dBi
Band 13 (777–787 MHz) 6 dBi
Band 25 (1850–1915 MHz) 6 dBi
Band 26 (814–849 MHz) 6 dBi
Band 30 (2305–2315 MHz) 1 dBi (external vehicle antennas not permitted!)
Band 41 (2496–2690 MHz) 9 dBi
UMTS
Band 2 (1850–1910 MHz) 6 dBi
Band 4 (1710–1755 MHz) 6 dBi
Band 5 (824–849 MHz)
6 dBi
3.9 Calculation example for the transmission power (EIRP)
EIRP = P
out
- C
loss
+ Ant
gain
= 22 dBm - 8 dB + 9 dBi = 23 dBm (
≙
200 mW)
EIRP = Equivalent Isotropically Radiated Power
P
out
= Transmission power of the wireless card (see data sheet of the device)
C
loss
= Losses caused by attenuation in coaxial cables and connectors
Ant
gain
= Antenna gain
