V02.00 | 2021/05
27
7.1.6
Setting antenna power
The antenna power of the reader can be set for the specific application. The radiated power for
the integrated antenna can be entered directly in the DTM. The power must be calculated for
external antennas.
The following parameters must be used to calculate the radiated power (P
ERP
):
P
cond
Power to be output at the TNC socket of the reader
dB
Cable attenuation
G
HW
Antenna gain of the external antenna
NOTE
Refer to the data sheets of the components used for the cable attenuation and
antenna gain.
BUS
ERR
RUN
APP
LAM
PWR
RFON
DATA
DIAG
USER
Conducted
power
P
cond
Cable
attenuation
dB
Antenna
gain
G
HW
Radiated
power
P
ERP
Antenna
Fig. 24: Power calculation – relevant variables (schematic representation)
The power can be calculated with the following formula:
P
ERP
= G
HW
- dB + P
cond
Setting antenna power – restrictions of radio regulations
Some national regulations restrict the degree of freedom available for creating an RFID system.
You as the operator are responsible for ensuring that regulations are observed.
n
ETSI
– Radiated power P
ERP
: max. 33 dBm ERP
n
FCC
– Radiated power P
ERP
: max. 36 dBm EIRP
– P
cond
: max. 30 dBm with antenna gain G
HW
≤ 6 db
NOTE
The DTM indicates impermissible configurations with an exclamation mark. A trans-
mission to the device is prevented.
Содержание 100000897
Страница 1: ...Your Global Automation Partner Instructions for Use TN UHF LNX UHF Reader...
Страница 2: ...2 Hans Turck GmbH Co KG T 49 208 4952 0 F 49 208 4952 264 more turck com www turck com...
Страница 19: ...V02 00 2021 05 19 Right click the Ethernet adapter Start the Topology scan Fig 16 Starting the Topology scan...
Страница 69: ...V02 00 2021 05 69 fclose fh else printf failed on writing n return 1...
Страница 75: ...V02 00 2021 05 75 else printf failed on writing n return 1 return EXIT_SUCCESS...
Страница 91: ...V02 00 2021 05 91 Restart the device to complete the update Click Reboot Fig 65 Restarting the device...
Страница 93: ...V02 00 2021 05 93 Select RS485 RFID and confirm with OK Fig 67 Selecting the RS485 interface...
Страница 97: ...V02 00 2021 05 97 Click the Select BL File button Fig 73 Button selecting a BL file...
Страница 106: ...Over 30 subsidiaries and over 60 representations worldwide www turck com 100003067 2021 05 100003067...