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用户59761 2007-1-2 13:48: PhysicalchannelabutBluetooth; Channel Definition The channel is represented by a pseudo-random hopping sequence hopping through the 79 or 23 RF channels.The hopp ...; 2384 4 0 4

用户59761 2007-1-2 13:46: Whatisbluetooth; Bluetooth is a short-range radio link intended to replace the cable(s) connecting portable and/or fixed electronic devices. Key feathers are ro ...; 3156 4 0 4

用户59761 2006-11-17 21:07: 如何进行GSM手机双频天线的阻抗匹配; 通常对某个频点上的阻抗匹配可利用 SMITH 圆图工具进行 , 两个器件肯定能搞定 , 即通过串 + 并联电感或电容即可实现由圆图上任一点到另一点 ...; 3440 4 1 5

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