User's Manual

C HAPTER 8 | Wireless Settings
Radio Settings
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using channels 1, 6, 11. Note that wireless clients automatically set the
channel to the same as that used by the access point to which it is
linked. (The supported channels are dependent on the country code
setting.)
◆ Auto Channel Select — Selecting Auto Select enables the access point
to automatically select an unoccupied radio channel.
◆ Transmit Power — Adjusts the power of the radio signals transmitted
from the access point. The higher the transmission power, the farther
the transmission range. Power selection is not just a trade off between
coverage area and maximum supported clients. You also have to
ensure that high-power signals do not interfere with the operation of
other radio devices in the service area. (Default: Minimum; Range:
min, 12.5%, 25%, 50%, 100%)
◆ Maximum Association Client per VAP — The maximum number of
clients that may associate with each VAP is preset top 64.
◆ Radio Mode — Defines the radio mode for the VAP interface. (Default:
11n (g compatible); Range: 11n (b&g compatible), 11n)
N OTE : Enabling the access point to communicate with 802.11b/g clients in
both 802.11b/g/n Mixed and 802.11n modes also requires that HT
Operation be set to HT20.
◆ Protection Method — Selects between Request to Send (RTS) and
mixed RTS-CTS (clear to send) packet transmission threshold.
◆ Preamble Length — The radio preamble (sometimes called a header)
is a section of data at the head of a packet that contains information
that the wireless device and client devices need when sending and
receiving packets. You can set the radio preamble to long or short. A
short preamble improves throughput performance, whereas a long
preamble is required when legacy wireless devices are part of your
network.
◆ Beacon Interval (20-1000) — The rate at which beacon signals are
transmitted from the access point. The beacon signals allow wireless
clients to maintain contact with the access point. They may also carry
power-management information. (Range: 20-1000 TUs; Default: 100
TUs)
◆ Data Beacon Rate (DTIM) (1-255) — The rate at which stations in
sleep mode must wake up to receive broadcast/multicast
transmissions.
Known also as the Delivery Traffic Indication Map (DTIM) interval, it
indicates how often the MAC layer forwards broadcast/multicast traffic,
which is necessary to wake up stations that are using Power Save
mode. The default value of 2 indicates that the access point will save all
broadcast/multicast frames for the Basic Service Set (BSS) and forward
them after every second beacon. Using smaller DTIM intervals delivers