lilei0001 发表于 2013-2-18 11:39:00

无线设备的选购

<span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">无线设备的选购</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">无线局域网</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">(Wireless Local Area Network</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,简称</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">WLAN)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">由无线网卡和无线接入点</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">(Access Point</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">AP)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">构成。简单地说</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">WLAN</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">就是指不需要网线就可以通过无线方式发送和接收数据的局域网,只要通过安装无线路由器或无线</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">AP</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,在终端安装无线网卡就可以实现无线连接。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">从上面的定义我们可以得知,要组建一个无线局域网,需要的硬件设备是无线网卡和无线接入点。那么,我们应该怎么选购这些设备呢?</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/>1.</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">无线网卡选购注意事项</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">要组建一个无线局域网,除了需要配备电脑外,我们还需要选购无线网卡。对于台式电脑,我们可以选择</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCI</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">或</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">USB</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口的无线网卡;对于笔记本电脑,则可以选择内置的</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">MiniPCI</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口,以及外置的</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCMCIA</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">USB</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口的无线网卡。为了能实现多台电脑共享上网,最好还要准备一台无线</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">AP</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">或无线路由器,并可以实现网络接入,例如,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">ADSL</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、小区宽带、</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">Cable Modem</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">等。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">在选购无线网卡的时候,需要注意以下事项:</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/>(1)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口类型</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">按接口类型分,无线网卡主要分为</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCI</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">USB</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCMCIA</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">三种,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCI</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口无线网卡主要用于台式电脑,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCMCIA</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口的无线网卡主要用于笔记本电脑,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">USB</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口无线网卡可以用于台式电脑也可以用于笔记本电脑。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">其中,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCI</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口无线网卡可以和台式电脑的主板</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCI</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">插槽连接,安装相对麻烦;</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">USB</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口无线网卡具有即插即用、安装方便、高速传输等特点,只要配备</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">USB</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口就可以安装使用;而</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">PCMCIA</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口无线网卡主要针对笔记本电脑设计,具有和</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">USB</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">相同的特点。在选购无线网卡时,应该根据实际情况来选择合适的无线网卡。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/>(2)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">传输速率</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">传输速率作为衡量无线网卡性能的一个重要指标。目前,无线网卡支持的最大传输速率可以达到</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">54Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,一般都支持</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="802.11" unitname="g">802.11g</st1:chmetcnv></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准,兼容</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11b</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准。不过部分厂家的产品通过各种无线传输技术,实现了高达</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">108Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的传输速率,例如,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">TP-LINK</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">NETGEAR</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">等。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">比较常用的支持</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11b</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准的无线网卡最大传输速率可达</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">11Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,其增强型产品可以达到</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">22Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、甚至</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">44Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">。在选购时,对于普通家庭用户选择</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">11Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的无线网卡即可;而对于办公或商业用户,则需要选择至少</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">54Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的无线网卡。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/>(3)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">认证标准</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">目前,无线网卡采用的网络标准主要是</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11b</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">以及</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE <st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="802.11" unitname="g">802.11g</st1:chmetcnv></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准,两个标准之间,分别支持</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">11Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">54Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的速率,后者可以兼容</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11b</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">在选购时一定要注意,产品是否支持</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">Wi-Fi</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">认证的标准,只有通过该认证的标准产品才可以和其他的同类无线产品组成无线局域网。另外,很多厂商提供的支持</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE <st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="802.11" unitname="g">802.11g</st1:chmetcnv></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准的产品,同时注明兼容</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11b</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准,这样,可以自由选择不同的传输速率。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/>(4)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">兼容性</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">无线局域网相关的</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11x</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">系列标准中,除了</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11b</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE <st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="802.11" unitname="g">802.11g</st1:chmetcnv></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准外,还有</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE <st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="802.11" unitname="a">802.11a</st1:chmetcnv></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准,该标准可以支持</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">20Mbps</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的传输速率,但是与前面两个标准都不兼容。所以在选购产品时,最好不要选择该标准的产品。在选择多个无线网卡时,必须要选择支持同一标准或相互兼容的产品。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/>(5)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">传输距离</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">传输距离同样是衡量无线网卡性能的重要指标,传输距离越大说明其灵活性越强。目前,一般的无线网卡室内传输距离可以达到</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">30</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">~</span><st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="100" unitname="米"><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">100</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">米</span></st1:chmetcnv><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,室外可达到</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">100</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">~</span><st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="300" unitname="米"><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">300</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">米</span></st1:chmetcnv><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">。在选购时,注意产品的传输距离不低于该标准值即可。另外,无线网卡传输距离的远近还会受到环境的影响,比如墙壁、无线信号干扰等。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/>(6)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">安全性</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">因为常见的</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE 802.11b</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">IEEE <st1:chmetcnv w:st="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="802.11" unitname="g">802.11g</st1:chmetcnv></span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">标准的无线产品使用了</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">2.4GHz</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">工作频率,所以,理论上任何人安装了无线网卡的用户都可以访问网络,这样的网络环境,其安全性得不到保障。为此,一般采取</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">WAP(Wireless Application Protocal</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,无线应用协议</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">和</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">WEP(Wired Equivalent Privacy</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">,有线等价加密</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">)</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加密技术,</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">WAP</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加密性能比</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">WEP</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">强,不过兼容性不好。目前,一般的无线网卡都支持</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">68/128</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">位的</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">WEP</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加密,部分产品可以达到</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US">256</span><span style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-bidi-font-family: Arial; mso-font-kerning: 1.0pt; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">位。</span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"> <br/><br/></span><span style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"><br style="mso-special-character: line-break"/><br style="mso-special-character: line-break"/></span>
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查看完整版本: 无线设备的选购