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Channel Bandwidth is the range of frequencies that will be used.
Preamble Type The “Long Preamble” can provide better wireless LAN
compatibility while the “Short Preamble” can provide better wireless LAN
performance.
CTS Protection: It is recommended to enable the protection mechanism.
This mechanism can decrease the rate of data collision between 802.11b and
802.11g wireless stations. When the protection mode is enabled, the
throughput of the AP will be a little lower due to a lot of frame-network that is
transmitted.