Does any expert know how the results of the cascaded SNR and OIP3 in the RF Budget Analyzer are calculated？

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志刚 am 18 Apr. 2025

As show in the figure,why doesn't the SNR of each stage change? And the result of OIP3 is also incorrect.

The formulas I refer to for calculating the cascaded SNR and OIP3 are as follows.

Therefore, taking Stage 2 as an example, the output results of SNR and OIP3 should be：

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