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CC2530发射功率与理论值相差很大

Other Parts Discussed in Thread: CC2530, CC2592, Z-STACK

TI工程师:

大家好!最近在调试新做的CC2530模块的射频,我在代码里面已经设置了最大发射功率:在应用层初始化结尾执行“ZMacSetTransmitPower(TX_PWR_PLUS_19);”,结果我用频谱仪测试道德发射功率为-2dB以下。而理论值应该达到3dB以上才对。请指导一下!谢谢!