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还有啥不能DIY?自制125英里的无线网

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发表于 2006-4-3 05:09:00
<SPAN id=ArticleContent><B>第1页:自制范围125英里的无线网</B>
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<P>&nbsp;&nbsp;&nbsp; 台式机DIY了,笔记本DIY了,投影机DIY了,就连服务器现在也有人DIY,还有什么不能DIY的呢?最近,狂热的无线网络爱好者成功的DIY了一台无线信号发射器,并且通过旧的10英尺卫星天线建立了一个125英里范围的无线网络区域。下面我们就来详细看一下这究竟是如何实现的。</P>
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发表于 2006-4-3 05:10:00
<SPAN id=ArticleContent><B>第2页:组装天线</B>
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<DIV align=left>&nbsp;&nbsp;&nbsp; 工具准备好了,我们就来开始制作吧。首先将一根比较粗的铜丝通过工具折成下图的样子。</DIV>
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<DIV align=left>&nbsp;&nbsp;&nbsp; 整个天线的主题部分是一个银制的连接器,铜质天线将通过这个连接器与底板相连。</DIV>
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<DIV align=left>&nbsp;&nbsp;&nbsp; 天线通过银质连接器固定在底板上,需要注意的是,天线不能和底板接触,因此在安装的时候可以借助一些支撑工具,保持天线和底板的距离。</DIV></DIV></DIV></DIV></SPAN><edited><editID>china1218</editID><editDate>2006-4-2 21:15:33</editDate></edited>
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发表于 2006-4-3 05:11:00
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<DIV style="OVERFLOW: ; WORD-BREAK: break-all; WORD-WRAP: break-word"><B>第3页:利用旧的卫星天线</B> <BR><BR><BR>
<DIV align=left>接下来就是天线的组装工作了,利用旧的卫星接受天线我们很容易的就装好了这台无线网络信号发射器。</DIV>
<DIV align=center><IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745230.jpg" border="0"> </DIV>
<DIV align=center><IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745208.gif" border="0"> 卫星天线的高频头</DIV>
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<DIV align=center><IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745208.gif" border="0"> 连接天线的底座</DIV>
<DIV align=center><IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745234.jpg" border="0"> <IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745235.jpg" border="0"></DIV>
<DIV align=center><IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745208.gif" border="0"> 天线和底座的连接</DIV>
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<DIV align=center><IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745237.jpg" border="0"> </DIV>
<DIV align=center><IMG alt="" src="http://photocdn.sohu.com/20051118/Img240745208.gif" border="0"> 最终成品</DIV>
<DIV align=left>从上面的图片我们可以看到,当摆放在水平面上的时候,接收器的盆与水平成了大概45度的角度,而与接收器的盆平行的天线也和地面成了45度。</DIV></DIV></DIV></DIV><!-- / message --></TD></TR>
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<TD =alt2><IMG class=inlineimg title=海鸥飞处现在在线 alt=海鸥飞处现在在线 src="http://www.redinside.com/images/statusicon/user_online.gif" border="0"> &nbsp; </TD>
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发表于 2006-4-3 05:13:00
<P><SPAN id=ArticleContent><B>第4页:信号的简单测试</B> </P>
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<DIV align=left>&nbsp;&nbsp;&nbsp; 对于DIY的成果,我们也做了简单的测试,请看下图。</DIV>
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<DIV align=left>&nbsp;&nbsp;&nbsp; 从测试软件中看,CH6的信号发射点在Town B,距离测试点英里;CH5的信号发射点在Town A,距离测试点2.4英里;而在CH1的两个AP桥接自Town A和距离发射点2.6英里的Town C。可以看到,自制的无线信号发射器覆盖范围还是很广的。</DIV>
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<TD><IMG src="http://photocdn.sohu.com/20051118/Img240745208.gif" border="0"></TD></TR></T></TABLE></TD></TR></T></TABLE>&nbsp;更多AP测试</DIV></DIV>
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<TD><IMG src="http://photocdn.sohu.com/20051118/Img240745208.gif" border="0"></TD></TR></T></TABLE></TD></TR></T></TABLE>&nbsp;安装在车上,便于移动</DIV>
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<TD><IMG style="BORDER-RIGHT: black 1px solid; BORDER-TOP: black 1px solid; BORDER-LEFT: black 1px solid; BORDER-BOTTOM: black 1px solid" src="http://photocdn.sohu.com/20051118/Img240745244.jpg" border="0">&nbsp;<A href="http://post.pic.sohu.com/view/picrecommend.do?abc=check&amp;picurls=http://photocdn.sohu.com/20051118/Img240745239.jpg;http://photocdn.sohu.com/20051118/Img240745240.jpg;http://photocdn.sohu.com/20051118/Img240745242.jpg;http://photocdn.sohu.com/20051118/Img240745244.jpg&amp;topicSubject=%BB%B9%D3%D0%C9%B6%B2%BB%C4%DCDIY%A3%BF%D7%D4%D6%C6125%D3%A2%C0%EF%B5%C4%CE%DE%CF%DF%CD%F8&amp;domainName=digi.it.sohu.com&amp;keyWord=%CA%B9%D3%C3%BC%BC%C7%C9%3B%B1%CA%BC%C7%B1%BE%D4%DA%CF%DF&amp;sourcePageUrl=http://digi.it.sohu.com/20051118/n240745206.shtml&amp;media=PCPOP&amp;author=raistlin" target="_blank"></A></TD></TR></T></TABLE></DIV>
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<DIV align=left>&nbsp;&nbsp;&nbsp; 写在最后:虽然现在DIY之风流行,不过无线信号发射器的制作对于一般用户稍显难了一些,并且对制作者网络和动手能力要求较高,而最后部分的的测试,更是普通用户无法完成的,同时如此大面积的无线网络覆盖在安全性方面也存在一些问题,不过这种DIY的精神还是只等推崇的,试想一下,今后在广袤的田野上使用笔记本通过无线网络聊天的情景是多么的惬意。</DIV></DIV></SPAN>
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发表于 2006-4-3 19:17:00
什么都能做,只不过你还没有想做的念头而已,动手对于DIY一族来说是家常便饭。
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