I am new to sllurp, as well as RFID readers. I am trying to find out if it is possible to limit to a specific frequency range with a Speedway R220 reader. I have some devices that the readers are interfering with when these are in range o the antennas (and primarily when the reader is set to full power). The devices in question operate in the 929 MHz range. From what I understand RFID readers are just under this (at the high end of their range), but they still interfere with these other wireless devices.