AirLive WHA-5500CPE - Manual (Page 43)

4. Web Management-Wireless and WAN Settings
AirLive WHA-5500CPE User’s Manual 36
4.2.9 Channel Width
Operation Mode -> Setup -> Channel Width
In 802.11a spec, each channel occupies 20MHz channel width. Therefore, each channel
will jump by number of 4 (i.e. 36, 40, 44…etc). You can change the Channel Width to
40MHz(Turbo), 10MHz(Half) or 5MHz(Quarter) to either increase performance or reduce
the interference problem.
„ Turbo (40MHz): Each channel will use 40MHz, double the normal size, to increase the
performance by channel binding. This option is not allowed in countries inside EU
„ Normal (20MHz): This is the default channel width specified by IEEE 802.11a
specification
„ Half (10MHz): Using this option will double the available channels for deployment in
congested areas. However, the performance will also drop by half when using this
option. When you are in Client mode, you can put the “Regulatory Domain” to “all
Channels” to maintain compatibility with other AP.
„ Quarter (5MHz): Using this option will increase the available channels by 4 times. It
is a good choice for deployment in very congested areas. However, the performance
will also drop greatly when using this option. When you are in Client mode, you can
put the “Regulatory Domain” to “all Channels” to maintain compatibility with other AP.
4.2.10 Security Settings
Operation Mode -> Setup -> Security Settings
Security settings allow you to use encryption to secure your data from eavesdropping.
You can select different security policy to provide association authentication and/or data
encryption. The WHA-5500CPE features various security policies including WEP, 802.1x,
WPA, WPA-PSK, WPA2, WPA2-PSK, WPA-Auto, and WPA-PSK-Auto. Please note not
all security policies are available in all operation modes. For example, only WEP is
available currently in WDS Bridge mode and Client Adhoc mode. All wireless devices on
the same network must use the same security policy. We recommend using WPA-PSK or
WPA2-PSK whenever possible. For WDS Bridge and Client Adhoc mode, we recommend
using WEP-152 encryption.
WEP
WEP Encryption is the oldest and most available encryption method. However, it is also
the least secure. Due to the limitation of the chipset, only WEP encryption is available
for WDS Bridge Pure MAC mode and Client Adhoc mode.