Mutual Interference Of Readers (Antennas) - Siemens SIMATIC RF600 System Manual

4.2.5

Mutual interference of readers (antennas)

Using more than one reader
When several RFID readers are used, there is a danger that RFID tags can also be read by
other readers. It must be ensured that the tag can only be identified by the appropriate
reader.
Technical faults between readers can then only occur when they transmit on the same
channel, i.e. in the same frequency range of a frequency band.
To prevent this, the RF660R reader uses the "Listen before talk" technique in Europe or
frequency hopping between many different channels in the USA.
RF600
System Manual, 09/2005 Edition, J31069 D0171-U001-A0-7618,
RF600 system planning
4.2 Antenna configurations
4-9