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[讨论] 菜鸟请教几个问题

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发表于 2006-7-31 17:33:00 | 显示全部楼层 |阅读模式
1. ramp /PVT/ FEM  分别是什么,体现哪方面性能?
2.开关谱/调制谱 在CMU中如何测量
[em01]
 楼主| 发表于 2006-8-3 13:33:00 | 显示全部楼层
就没个高手指点一下[em03]
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发表于 2006-8-3 15:15:00 | 显示全部楼层
the PVT and ramp just test the TX Power versus both time domain and frequency domain when the MS in TX status ,and the shape of the spectrum of the modulation spectrum and the switch spectrum .and FEM means Front End Module ,is it right?
the modulation spectrum and switch spectrum can be tested directly with CMU200, they are 2 items under the same branch.
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