(Cisco Wireless Technology-wireless-ccna-08/data/1156819 Evaluation Solution introduces several evaluation solutions and tools, including RSSI, RCPI, SNR, etc. Cisco Wireless Technology-wireless-ccna-09/data/1156820 Evaluating Antenna Gain in Decibel Introduces the primary solution for evaluating antenna gain, including dBm, dBi, dBd, etc. Cisco Wireless Technology-wireless-ccna-10/data/1156821 Antenna Radiation and Polarization introduces the radiation energy diagram and polarization pattern of the antenna. And the details on the radiant energy map are described. Cisco Wireless Technologies-wireless-ccna-11/data/1156822 Omnidirectional and Directional Antennas describes the differences between omnidirectional and directional antennas. And the representative antennas are described. Cisco Wireless Technology-wireless-ccna-12/data/1156839 Diversity Characteristics of Antennas, Antenna Connection Devices Analysis of EIRP, the main radiation level scheme. The effect of the diversity feature is described. Introduce the related connecting devices of the antenna. Cisco Wireless Technology-wireless-ccna-13/data/1156840 Comparison of Frequency Hopping Spread Spectrum and Direct Sequence Spread Spectrum The three most initially defined standards for the physical layer of 802.11 are the infrared physical layer, the frequency hopping spread spectrum physical layer and the direct sequence spread spectrum. frequency physical layer.)
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