GIGA-BYTE TECHNOLOGY CO. LTD. GN-WI01HT Manuale Utente

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802.11b Preamble: Specifies “Short & Long”, or “Long Only” preamble. Allows ad hoc 
compatibility with other 2.4GHz devices. 
 
Transmit Power Level: Select 100%, 50%, 25%, 12.5%, or lowest transmit power. 
 
3-3-3. Security setting: 
 
Click “Modify” and “Security” button (see Figure 3-11
 
Figure 3-11 
     
 
This card provides five security options: No security, WEP encryption, WPA-PSK, WPA 
security and 802.1x security architecture. 
 
3-3-3-1. No security (None):   
 
Allows the communication between the  WLAN card and access point without data 
encryption. 
 
3-3-3-2. Use WEP for authentication and encryption(Pre-Shared Keys): 
 
To prevent unauthorized  user to access the data on  wireless stations, the  WLAN Card 
offers  a secure data encryption, known as WEP (Wired Equivalent Privacy). When you 
select this item, the target 802.11 device must has the same encryption keys and be 
configured to use encryption in order to communicate with each other. To configure your 
WEP encryption, please click  “Pre-Shared Keys  “then the following window will pop up 
(see Figure 3-12)