IEEE80211_RADIOTAP_F_BADFCS
rtap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
sc->sc_rx_th.wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;
tap->wr_flags |= IEEE80211_RADIOTAP_F_BADFCS;