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Forum Post: CC1120 adjacent channel bandwidth in ACP measurement

In CC1120 ACP measurement .

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From TER's answer, I  know the 100Hz is the RBW, the deviation is 2.4kHz,12.5kHz is channel bandwidth.


But I have meet another question.

what is adjacent channel bandwidth you set in the Tx ACP test?

12.5KHz? I have try the 12.5KHz as the adjacent channel bandwidth but the result is aobut -45dBc.(adjacent channel power / wanted channel power), what's wrong in my test? .

Q2: which detector should I choose?  auto peak, max peak, min peak, sample, RMS ,average or QPK?

Thank you and looking forward to your answer.


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