Wireless Access Point
User Guide
Parameter Description
Channel
It specifies the operating channel of the AP. This parameter can be set if
Lock Channel is not selected. If you select Auto from the drop-down-list
box, the AP adjusts its operating channel automatically according to the
ambient environment.
Channel
Bandwidth
It specifies the wireless channel bandwidth of the AP. This parameter can
be set if the AP works in 802.11b/g/n, 802.11ac or 802.11a/n mode and
Lock Channel is not selected.
−
20 MHz: It indicates that the AP can use only 20 MHz channel
bandwidth.
−
40 MHz: It indicates that the AP can use only 40 MHz channel
bandwidth.
−
20/40 MHz: It indicates that the AP automatically adjusts its
channel bandwidth to 20 MHz or 40 MHz according to the ambient
environment.
−
80 MHz: It indicates that the AP can use only 80 MHz channel
bandwidth.
Extension
Channel
It specifies the wireless extension channel of the AP.
Lock Channel
It is used to lock the channel settings of the AP. If this parameter is
selected, channel settings including Country/Region, Network Mode,
Channel, Channel Bandwidth, and Extension Channel cannot be
changed.
Transmit Power
It specifies the transmit power of the AP. If the AP has a higher transmit
power, its WiFi coverage is wider. However, reasonably decreasing the
transmit power will improve the AP’s WiFi network performance and
security.
Lock Power
It specifies whether the current transmit power settings of the AP can be
changed. If you tick this box, the current transmit power could not be
changed.
Preamble
It specifies a group of bits located at the beginning of a packet, according
to which the receiver of the packet can perform synchronization and
prepare for receiving data. By default, the Long Preamble option is
selected for compatibility with old network adopters installed on wireless
devices. To achieve better synchronization performance of networks, you
can select the Short Preamble option.
Short GI
It specifies short guard interval. Propagation delay of WiFi signal will
happen to the receiving port during transmission. If the following data
block is sent too fast, it will interfere the previous data block. A short
guard interval can be used to circumvent this interference. Enabling the
short GI function can yield a 10% improvement in data throughput. By
default, this function is enabled.
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