18
7.3
Reader Setting Window
The window shown below is a window capable of setting use of modes of output of a reader/G
value/operating frequency/reader RF test.
Fig
.
5. Reader Setting Window
1.
This adjusts attenuation of reader output. 0 means that there is completely no
attenuation at output. It can be adjusted from -3 to +30, moves in one unit and means
around 1dBm.
The [-] value might have adverse influence on performance of a reader.
As the way of using, it is all right if you adjust by moving a slide with a pen or directly
input a number and click other point. The increase of an attenuation value means
reduction of output, so the tag reading performance is also decreased generally.
2.
The Q Value is a parameter of a necessary algorithm when multiple EPC Gen2 tags are
read. Because the UHF RFID reader module of XCODE-IU906X is a method that
necessary Q value is automatically adjusted according to the quantity of tags to be
read, the setting of this parameter value doesn’t have big influence on its performance
except a short moment in case of initial starting.
3.
The operating frequency of a reader is selected.
FHSS : The frequency hopping is executed in a unit of 3.3 from the frequency
designated at a window corresponding to 3.1 and the tag is read.
The frequency hopping method is pseudo-random hopping.
FIX : The tag is read by continuously using only the frequency designated at a window
corresponding to 3.1. The way of using is that you select a necessary part respectively
and click the [Set Freq.] button.
LBT: LBT motion is executed among frequencies designated in a unit of 3.3 from the
frequency designated at a window corresponding to 3.1 to the frequency designated at
a window corresponding to 3.2.
LTB motion can be used in the Europe and Japan only
and can’t be used in the US. User can not modify LTB motion.
1
2
3
4
3.1
3.2
3.3
