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In the FCC approval region, the RF power connected at the antenna input must not exceed 1 W� If the
gain of the antenna is higher than 6 dBi, the RF power connected must be reduced correspondingly� The
reader's transmission power is then:
P
Reader
= P
cond
+ D
kabel
with P
cond
≤ 1 W and G
isot
≤ 6 dB
P
Reader
��� Transmission power of the reader in dBm
P
cond
��� Power on antenna output in dBm
D
Kabel
��� Cable attenuation in dBm
G
isot
��� Antenna gain in dBi
If the antenna gain is stated in dBic, the reader's transmission power can be increased by 3 dB�
The transmission power for the European variant can be set in 0�25-dB steps from 20 dBm to 33 dBm�
The heading provides separate fields for inputting the antenna gain and the attenuation�
Note
The antenna gain must be stated in dBic�
The RFID reader's transmission power can be set separately for each antenna or all antennas at the
same time� If the "all antennas same power" check box is set, the sliders for the other antennas are set to
the same power when a slider for the power for antenna 1-4 is adjusted� If this check box is not selected,
the power at the antennas can be set separately for each output�
Pre-defined antennas can be selected in the "Antenna type" drop-down menu� This selection sets the
antenna gain in the program, and limits the transmission power to the maximum value permitted for this
antenna� If "User antenna" is selected, the gain and power can be freely set�
The context menu allows the XML file to be opened, and if changes are made to the file also allows it to
be reloaded� When the file has been loaded, the changes are visible in the program�
Antenna multiplex configuration
The sequence in which the antennas are used to read the tag can be set under this header� If this anten-
na is not activated, the system proceeds to the next entry on the multiplex list� For asynchronous opera-
tion of the reader, the exposure time on the antenna can also be specified�
RF settings
Depending on the approval region, the reader transmits in the frequency range 865 MHz to 868 MHz for
Europe or 902 MHz to 928 MHz for USA�
In Europe the number of channels to be used can be limited� For this purpose the related check box for
each channel the reader is to use must be selected on the "Available channels" list� In this manner it is
possible to avoid from the start the usage of specific channels on which there is interference�
Each read command connects the channels under country-specific conditions and in accordance with the
selected communications standard� The reader then starts to search through the channels in ascending
order�
In the "Communications standard" drop-down menu, when necessary and when permitted by the reader,
the reader can be switched to a different country-specific communications standard� The device version
governs the communications standards that are permitted�
The modulation type can be switched between double sideband and PR-ASK modulation in this drop-
down menu�
The communications profile is critical for the data rate and the read reliability� This option allows the
technician to directly influence the performance of the reader and the spectrum of the signal� The profile
names contain basic orientation on the transmission and reception data rates�
Note
A special data rate may be necessary, depending on the tag used� Please contact ifm electronic for fur-
ther details�
The “Time until carrier stand-by” parameter specifies how long the carrier of the reader remains active on
the air interface after the last action� Once this time has elapsed the carrier is switched off�
