大家一起讨论一下RF calibration吧，然后我整理一份完整的文档共享出来希望作为参考

怎么说呢你先开个头吧

AFC AUTO Frenquency calibrationAPC AUTO power calibrationAGC AUTO gain calibration

<P align=left>1 APC Power level: Power level calibrated and tolerances, how is data for NVRAM calculated <div dir=ltr align=left>For 4 bands:</div><div dir=ltr align=left>GSM859/900: pcl 5-19; dBm:32,31,29,27,25,23,21,19,17,15,13,11,9,7,5</div><div dir=ltr align=left>DCS1800/PCS1900: pcl 0-15; dBm:29,28,26,24,22,20,18,16,14,12,10,8,6,4,2,0</div><div dir=ltr align=left>recommended tolerances: ±0.2</div><div dir=ltr align=left>scale factor value should be saved into flash </div><div dir=ltr align=left> </div><BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"><div><P align=left>2 AGC Radio gain measured and siggen. </div><div dir=ltr align=left>Mid channel for each band;</div><div dir=ltr align=left>Generator is set to -85dBm for MaxGain test</div><div dir=ltr align=left>should be as:send "CalDevGsmGainProgramReq" to handset, and handset return "rssilevel",then MaxGain = rssilevel/16 - (-85);</div><div dir=ltr align=left>Generator = -65dBm for Reduction Gain test</div><div dir=ltr align=left>same as above: Reduc Gain = (MaxGain - (rssilevel/16 - (-65)));</div><div dir=ltr align=left>Then, fill the Gain code table for each band; </div><P align=left>3 AFC TX power vs frequency: Power level and channels used, how is data calculated <div dir=ltr align=left>This process is same as power level. The different is the measurment channel. . </div><P align=left>4 RSSI vs frequency: Power level and channels used, how is data calculated <div dir=ltr align=left>The commands same as RX gain</div><div dir=ltr align=left>Send "CalDevGsmGainProgramReq" return "rssilevel"</div><div dir=ltr align=left>Rssicomp[channel] = -16 * (rssilevel - (-85) - MaxGain)</div></BLOCKQUOTE>

楼上的是ADI的吗?

上面说的一点都不实用

小编，每个平台都有自己的rf calibration sofeware spec，好好看看spec就可以了。平台的校准的方法都是不一样的，而且这个东西没有必要求同存异，整理出一套规范，而且校准中所用到的计算方法也不一样。

我这有GSM、CDMA2000、WCDMA的校准资料，有谁想要联系我

这些应该是工厂生产用的吧?

APC Calibration fail

是个好主意但是 不能统一吧 各平台都有各自的标准

负载拉移(Load-Pull)原理在射频功率放大器设计中的应用（台湾）

谢谢分享 学习一下