(Cisco wireless technology-wireless-ccna-01/data/1156810 course introduction Cisco wireless technology-wireless-ccna-02/data/1156813ISM frequency band first introduces the origin of the two frequency bands used by 802.11, 2.4G and 5G. Cisco Wireless Technology - wireless-ccna-03/data/1156814 Wireless network types introduce the differences between WPAN, WLAN, WMAN, WWAN. Cisco wireless technology-wireless-ccna-04 wireless network infrastructure introduces several primary concepts, including IBSS, BSS, ESS, SSID, BSSID, MBSSID. /data/1156815Cisco wireless technology-wireless-ccna-05/data/1156816AP function introduction introduces several primary functions of AP, including: AP access, AP relay, AP office group bridge, AP outdoor bridge, MESH, etc. Cisco Wireless Technology-wireless-ccna-06/data/1156817 The three-element analysis of waves introduces the spectrogram, the frequency band usage rules in China, and the three elements of the analysis wave: frequency, amplitude, and phase. Cisco Wireless Technology-wireless-ccna-07/data/1156818 Factors that affect transmission To sum up, there are many factors that affect transmission: path loss, absorption and emission, multipath, scattering and refraction, etc.)
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