FIG. 4A is a graph illustrating the wireless communications terminal 10 of FIG. 1 in the first mixer operating mode in the presence of an interfering RF signal RFINT. The second wanted RF signal, which is included in the second RF receive signal RFRX2, is separated from the first wanted RF signal, which is included in the first RF receive signal RFRX1, by three RF channels; therefore, the differen