User`s manual
29
802.11 B only – This adapter can be compatible with both 802.11g and 802.11b wireless 
stations.  If  there  are  only  802.11b  wireless  stations  in  the  network,  you  can  set  the 
adapter to this mode. 
802.11 G only –This adapter can be compatible with both 802.11g and 802.11b wireless 
stations.  If  there  are  only  802.11g  wireless  stations  in  the  network,  you  can  set  the 
adapter to this mode. 
Ad Hoc Wireless mode: There are four types. 802.11B only, 802.11 B/G mixed 802.11A only, 
and 802.11G only modes are supported. 
Select  Your  Country  Region  Code:  The  available  channel  differs  from  different  countries. 
For  example:  USA  (FCC)  is  channel  1-11,  Europe  (ETSI)  is  channel  1-13.  The  operating 
frequency channel will be restricted to the country user located before importing. If you are in 
different country, you  have  to  adjust the  channel setting  to  comply  the  regulation  of  the 
country. 
11B/G Protection: If you have a mix of 802.11b & 802.11g wireless stations in the network, 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 adapter will be a little lower due to many of frame traffic should 
be transmitted. 
 Auto  – Based  on  the  status  of  network  and  automatically  disable/enable  protection 
 mode. 
 On – Always enable the protection mode. 
 Off – Always disable the protection mode. 
Tx Rate: Manually force the Transmit using selected rate. Default is auto. There are several 
options including Auto/1/2/5.5/6/9/12/18/24/36/48/54Mbps for you to select. When the “Auto” 
is  selected,  the  device  will  choose  the  most  suitable  transmission  rate  automatically.  The 
higher data rate  you designated in the  network, the shorter distance is allowed between the 
card and the wireless stations. 
  When the wireless mode is “802.11 B only”, the maximum data rate is 11 Mbps (11b) so 
that there are only “Auto/1/2/5.5/11Mbps” options you can select. 
Tx BURST: The Burst enables the adapter to deliver the better throughput in the same period 
and environment. 
Enable TCP Window Size: The TCP Window is the amount of data a sender can send on a 
particular  connection  before  it  gets  an  acknowledgment  back  from  the  receiver  that  it  has 
gotten some of it. When the Router or AP card is connecting to have set up the TCP Window, 
you  can  enable  the  parameter  to  meet  the  data  size  for  the  Router  or  AP  connection.  The 
larger TCP Window the better performance. 
Fast Roaming at -70dBm: You can enable the parameter when you want to fast roaming to 
the  network  nearby  without  intercepting  the  wireless  connection,  especially  the  adapter  is 










