Справочник Пользователя для Aopen aoi-812

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Parameter Description 
Network Type 
Infrastructure – This operation mode requires the presence of an 
802.11 Access Point. All communication is done via the Access 
Point or Router.   
 
Ad-Hoc – Select this mode if you want to connect to another 
wireless stations in the Wireless LAN network without through an 
Access Point or Router. 
 
 
Transmit Power 
If you want to lower the transmit power of the card for saving the 
power of the system, you can select the lower percentages from 
the list. 
 
 
11B Preamble Type 
The preamble defines the length of the CRC block for 
communication among wireless stations. This option is only active 
in the Ad Hoc network. 
 
There are two modes including Auto and Long Preamble. If 
“Auto“ mode is selected, the card will auto switch the preamble 
mode depending on the wireless stations which the card is 
connecting to. 
 
 
RTS Threshold 
Minimum packet size required for an RTS (Request To Send). For
packets smaller than this threshold, an RTS is not sent and the 
packet is transmitted directly to the wireless network. Select a 
setting within a range of 0 to 2312 bytes. Minor change is 
recommended. 
 
 
Fragment Threshold 
The value defines the maximum size of packets; any packet size 
larger than the value will be fragmented. If you have decreased 
this value and experience high packet error rates, you can 
increase it again, but it will likely decrease overall network 
performance. Select a setting within a range of 256 to 2312 bytes. 
Minor change is recommended. 
 
 
Channel 
This setting is only available for Ad Hoc mode. Select the number 
of the radio channel used for the networking. The channel setting 
should be the same as the network you are connecting to.