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<div class="quote"><b>以下是引用<i>hero89</i>在2007-3-25 20:40:00的发言:</b><br/><p>今天收到测量套间,焊好开始测量.阻抗曲线.<img src="attachments/dvbbs/2007-3/200732520395828816.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2007-3/200732520395828816.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /></p><p>但是有一个问题,就是软件在校正时,两个声到电平不一样,差20DB.哪位DX能帮帮我把?平衡旋钮在中间的.<br/></p><p> </p><p>还有就是50HZ左右的阻抗没测一次,就有变化,这有是怎么回事呢?<br/></p><br/><img src="attachments/dvbbs/2007-3/200732520451178570.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2007-3/200732520451178570.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><br/><br/></div><p></p>差20分贝的话,比较离奇了... |
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