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AOpen Wireless PC Adapter  
ENCRYPTION 
 
Figure 5 ENCRYPTION tab 
 
An additional security measurement may be desired on protecting 
your wireless network. This can be achieved by applying WEP 
(Wired Equivalent Privacy) encryption. WEP uses a combination 
of  64bit and 128bit keys to encrypt every data transmission.  
 
Encryption (WEP) 
It can be set to Disable64 Bit, and 128 Bit. Once enable the WEP, 
you would create an encryption key.  All the nodes in the same 
wireless network need to present the identical key for the 
communication. 
 
Key 1 – Key 4 
The Keys can be entered manually in these four fields and restored.  
Default Tx Key 
You may chose Key 1 to Key 4 as your default key. 
 
Authentication Type 
It is only used for WEP only.  You may choose between Open 
System 
or Shared Key. 
AOpen Wireless PC Adapter  
 
 
 Shared Key is when both sender and receiver share a secret 
key. 
 Open System is when both sender and receiver do not 
share a secret key.  It prevents the eavesdropping if  the 
secret key is discovered.  
ADVANCED 
 
 
Figure 6  ADVANCED tab 
 
It allows you to set the Preamble Type, Fragmentation Threshold 
and RTS/CTS Threshold. 
 
Preamble Type 
It should be set to Long for a “noisy” network environment, or 
Short for a clear network environment. 
 
Fragmentation Threshold 
The lower value of  the fragmentation threshold will increase the