Installation Guide

20
The following command sets the reader for FCC operation:
}Cw,d:tpc,b:00010000,f:1!
The following command sets the reader for ETSI operation with Frequency Hopping:
}Cw,d:tpc,b:00040000,f:1!
NOTE: A change in value for Frequency control or Enable ETSI frequency hopping
will reset the reader when it changes modes. Writing these bits to the previous
value will not affect the reader since there is no mode change.
The reader can internally check antenna condition via the reflected power
measurement. The Suppress antenna check bit controls whether this check is
performed when RF power is first applied to a reader antenna port. The
Suppress RXD check bit controls whether this check is performed each time a
change in antenna selection is performed.
Caution
Suppressing the RXD check or Antenna check will disable protection alogorithms in
the reader and is highly discouraged. Disabling these algorithms can result in serious
damage to the reader under high Voltage Standing Wave Ratio (VSWR) situations.
VSWR is the measure of the impedance mismatch bewteen the reader’s RF
transmission circuitry and the external load placed on the reader’s antenna port.