Spectrum Analysis A noisy environment can cause the data in 802.11 transmissions to become corrupted -> the cyclic redundancy check (CRC) will fail -> the receiving 802.11 radio will not send an ACK frame to the transmitting 802.11 radio -> the unicast frame is not acknowledged and will have to be re-transmitted. Wi-Fi data networks can handle a retransmission rate … Continue reading CWNA Summary Notes: Spectrum and Coverage Analysis →