MT6572+MT6166 做WCDMA BAND1 2 5 现在BAND2灵敏度低

MT6572+MT6166 做WCDMA BAND1 2 5 现在BAND2灵敏度低信道 中信道-106高信道-98 匹配值换了一堆了 没有什么改善 很不敏感？求资深工程师帮忙
双工器是MURATA的
而且现在校准起来也有问题
/16 14:04:25.968 [GPIB] ----RCT_WCDMA_AGC_PreSetting----
2013/12/16 14:04:25.968 [GPIB] CALL:CHANnel 9700;*OPC?
2013/12/16 14:04:25.984 [GPIB] 0: 1
2013/12/16 14:04:25.984 CWcdmaAgcClass::DutRssiMeasurement(): UARFCN: 9700, LNA mode: 0
2013/12/16 14:04:25.984 Gain value: 57.000 (dB)
2013/12/16 14:04:26.046 CWcdmaAgcClass::DutRssiMeasurement() main_ant = -385
2013/12/16 14:04:26.046 CWcdmaAgcClass::DutCheckLnaMode() Check LNA mode: 0
2013/12/16 14:04:26.109 CWcdmaAgcClass::DutCheckLnaMode() Get LNA mode: 0
2013/12/16 14:04:26.109 CWcdmaAgcClass::TesterChangeChannel() 9800
2013/12/16 14:04:26.109 [GPIB] ----RCT_WCDMA_AGC_PreSetting----
2013/12/16 14:04:26.109 [GPIB] CALL:CHANnel 9800;*OPC?
2013/12/16 14:04:26.125 [GPIB] 0: 1
2013/12/16 14:04:26.125 CWcdmaAgcClass::DutRssiMeasurement(): UARFCN: 9800, LNA mode: 0
2013/12/16 14:04:26.125 Gain value: 57.000 (dB)
2013/12/16 14:04:26.187 CWcdmaAgcClass::DutRssiMeasurement() main_ant = -402
2013/12/16 14:04:26.187 CWcdmaAgcClass::DutCheckLnaMode() Check LNA mode: 0
2013/12/16 14:04:26.218 CWcdmaAgcClass::DutCheckLnaMode() Get LNA mode: 0
2013/12/16 14:04:26.218 CWcdmaAgcClass::TesterChangeChannel() 9869
2013/12/16 14:04:26.218 [GPIB] ----RCT_WCDMA_AGC_PreSetting----
2013/12/16 14:04:26.218 [GPIB] CALL:CHANnel 9869;*OPC?
2013/12/16 14:04:26.234 [GPIB] 0: 1
2013/12/16 14:04:26.234 CWcdmaAgcClass::DutRssiMeasurement(): UARFCN: 9869, LNA mode: 0
2013/12/16 14:04:26.234 Gain value: 57.000 (dB)
2013/12/16 14:04:26.296 CWcdmaAgcClass::DutRssiMeasurement() main_ant = -392
2013/12/16 14:04:26.296 CWcdmaAgcClass::DutCheckLnaMode() Check LNA mode: 0
2013/12/16 14:04:26.359 CWcdmaAgcClass::DutCheckLnaMode() Get LNA mode: 0
2013/12/16 14:04:26.359 CWcdmaAgcClass::TesterChangeChannel() 9938
2013/12/16 14:04:26.359 [GPIB] ----RCT_WCDMA_AGC_PreSetting----
2013/12/16 14:04:26.359 [GPIB] CALL:CHANnel 9938;*OPC?
2013/12/16 14:04:26.359 [GPIB] 0: 1
2013/12/16 14:04:26.359 CWcdmaAgcClass::DutRssiMeasurement(): UARFCN: 9938, LNA mode: 0
2013/12/16 14:04:26.359 Gain value: 57.000 (dB)
2013/12/16 14:04:26.390 CWcdmaAgcClass::DutRssiMeasurement() main_ant = -405
2013/12/16 14:04:26.390 CWcdmaAgcClass::DutCheckLnaMode() Check LNA mode: 0
2013/12/16 14:04:26.453 CWcdmaAgcClass::DutCheckLnaMode() Get LNA mode: 0
2013/12/16 14:04:26.453 CWcdmaAgcClass::TesterChangePower() -45.000000
2013/12/16 14:04:26.453 [GPIB] ----RCT_WCDMA_AGC_PreSetting----
2013/12/16 14:04:26.453 [GPIB] CALL:CELL:POWER:SAMPLITUDE -45.0;*OPC?
2013/12/16 14:04:26.468 [GPIB] 0: 1
2013/12/16 14:04:26.468 CWcdmaAgcClass::TesterChangeChannel() 9662
2013/12/16 14:04:26.468 [GPIB] ----RCT_WCDMA_AGC_PreSetting----
2013/12/16 14:04:26.468 [GPIB] CALL:CHANnel 9662;*OPC?
2013/12/16 14:04:26.484 [GPIB] 0: 1
2013/12/16 14:04:26.484 CWcdmaAgcClass::DutRssiMeasurement(): UARFCN: 9662, LNA mode: 1
2013/12/16 14:04:26.484 Gain value: 30.000 (dB)
2013/12/16 14:04:26.546 CWcdmaAgcClass::DutRssiMeasurement() main_ant = -329
2013/12/16 14:04:26.546 [*Error*] path loss over/under flow, -12853
##
Calibration and NSFT total cost time is: 140.67s
校准的时候 不是所有的板子都是这样的一部分校准不过；ATE校准不过的 有些META 能校准的过 PATHLOSS不大+_4左右
如果不校准BAND2 校准能顺利通过
测试点 是焊线 在板子上面校准的
不知道有没有人遇到过同样的问题
请求资深工程师帮忙项目催着要结果 等着量产
先谢谢了！

资深工程师 帮忙啊
大家都没有遇到？
我中奖了

别急，静等资深工程师

是否是双工到收发器之间的的共模干扰导致，在双工器和收发器之间并联匹配处加个器件到地试一试。如C2115

我们就留了个PI匹配其他的3个没有留啊

等等资深工程师，不用急！

同等资深工程师。资深工程师都死光了吗？！？！

4楼正解，调下那个T形匹配就ok了。

学习了！

需要加那个T型匹配的。

问题解决了 软件问题

请教一下楼主，软件问题是modem参数问题还是什么问题知道不

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