WCDMA校准的时候，PA gain越大，输出功率越低，怎么.

增益是固定值，不可能出现你说的情况。上cal log

2013/06/05 16:30:48.640 [GPIB] 0: CALL:MS:POWER:TARGET:AMPLITUDE 15
2013/06/05 16:30:48.640 CWcdmaApcClass::GetPaModeByPaOctLevelControlIndex(): Band: 0, PA Control Index: 2, PA Mode: 1
2013/06/05 16:30:48.640 CWcdmaApcClass::GetPrfByPaOctLevelControlIndex(): Band: 0, PA Control Index: 2, PRF: 15
2013/06/05 16:30:48.640 CWcdmaApcClass::GetPaGainByPaOctLevelControlIndex(): Band: 0, PA Control Index: 2, PA Gain: 409
2013/06/05 16:30:48.640 CWcdmaApcClass::GetPaModeByPaOctLevelControlIndex(): Band: 0, PA Control Index: 2, PA Mode: 1
2013/06/05 16:30:48.640 CWcdmaApcClass::GetPrfByPaOctLevelControlIndex(): Band: 0, PA Control Index: 2, PRF: 15
2013/06/05 16:30:48.640 CWcdmaApcClass::SampleTxPowerPaCal()
2013/06/05 16:30:48.640 CWcdmaApcClass::SampleTxPower() Band: 0, UARFCN: 9750, PA MODE: 1, TPC Index: 9, Trigger Type: 1, Trigger Delay: 0ms
2013/06/05 16:30:48.640 [GPIB] ----RCT_WCDMA_APC_Initiate----
2013/06/05 16:30:48.640 [GPIB] 0: INITiate:WCPower
2013/06/05 16:30:48.843 [GPIB] INITiate:ON?
2013/06/05 16:30:48.843 [GPIB] 0: WCP
2013/06/05 16:30:48.843 CWcdmaApcClass::DutTx()
2013/06/05 16:30:48.859 [GPIB] ----RCT_WCDMA_APC_FetchResult----
2013/06/05 16:30:48.859 [GPIB] Fetch:WCPower:POWer?
2013/06/05 16:30:48.859 [GPIB] 0: +1.32624300E+001
2013/06/05 16:30:48.859 [GPIB] FETCh:WCPower:INTegrity?
2013/06/05 16:30:48.859 [GPIB] 0: +0
2013/06/05 16:30:48.859 CWcdmaApcClass::SampleTxPower() = 13.262430
2013/06/05 16:30:48.968 CWcdmaApcClass::PowerTrackingTerminated()
2013/06/05 16:30:48.968 CWcdmaApcClass::SetPaGainByPaOctLevelControlIndex(): Band: 0, PA Control Index: 2, PA Gain: 385
2013/06/05 16:30:48.968 CWcdmaApcClass::SetOctLevelPaControlRuntimeToTarget(): Band: 0
2013/06/05 16:30:48.984 CWcdmaApcClass::SampleTxPowerPaCal()
2013/06/05 16:30:48.984 CWcdmaApcClass::SampleTxPower() Band: 0, UARFCN: 9750, PA MODE: 1, TPC Index: 9, Trigger Type: 1, Trigger Delay: 0ms
2013/06/05 16:30:48.984 [GPIB] ----RCT_WCDMA_APC_Initiate----
2013/06/05 16:30:48.984 [GPIB] 0: INITiate:WCPower
2013/06/05 16:30:49.187 [GPIB] INITiate:ON?
2013/06/05 16:30:49.187 [GPIB] 0: WCP
2013/06/05 16:30:49.187 CWcdmaApcClass::DutTx()
2013/06/05 16:30:49.203 [GPIB] ----RCT_WCDMA_APC_FetchResult----
2013/06/05 16:30:49.203 [GPIB] Fetch:WCPower:POWer?
2013/06/05 16:30:49.203 [GPIB] 0: +1.40760300E+001
2013/06/05 16:30:49.203 [GPIB] FETCh:WCPower:INTegrity?
2013/06/05 16:30:49.203 [GPIB] 0: +0
2013/06/05 16:30:49.203 CWcdmaApcClass::SampleTxPower() = 14.076030

校准出来的LOG,PA gain为409的时候读出来的功率为13.262430，
PA gain为385的时候读出来的功率为14.076030 。

PA线性不好吧

PA没问题呢，你看下你们的测试LOG，肯定也是一样的。

PA gain是tranceiver 认为PA的gain，为了保持输出功率不变，PA gain变大 ，tranceiver就要变小，而PA的实际gain没变，输出就变小了

好奇怪， 是不是饱和了？

不是饱和了，就是这个原理

增益点与功率点Lp结果看了么

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