105 of 112
14.13 Spectral Scan
It may happen that the RFID transmission to or from the transponder is disturbed by frequency interfering.
SpectralScan
shows a qualitative frequency spectrum. Due to the fact that it is received by means of the connected RFID antenna, the
frequency assignment on location is made visible.
1
4
2
3
5
Fig. 72: SpectralScan
①
ETSI
selects the frequency area
②
Antenna 1
–
n
selects an antenna from the drop-down menu
③
Start
starts SpectralScan
④
Stop
stops SpectralScan
⑤
Reset maxima
resets maxima
If there is more than one reader, spectral scan shows which channels might be occupied by other readers. In
Fig.
71, p. 104,
the channels 4, 10 and 13 are occupied by other r
eaders. If the user is not satisfied with the r
eading results
and the interferences keep occurring, it is possible to deactivate channels on which the interference occurs (4, 10 and
13) and only activate the channel that is free (7) to achieve better reading results, see
⑯
in
Fig.
49, p. 85
.
