  Recently radio signals originating from extensive air showers have been
observed at the Pierre Auger Observatory. In this note we present software to
simulate the response of an array of antenna detectors and to reconstruct the
radio signals. With this software it is possible to investigate design
parameters of an antenna array and to visualize the radio data. We show
comparisons between measurements of radio signals from air showers and
simulated data which were generated with the REAS2 generator and then processed
with the detector simulation and reconstruction software.
