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NoiseFigureMeasurement-Gain-Method.php    5182 Bytes    13-06-2024 23:03:22


Noise Figure Measurement using the Gain-Method


Manual and online Calculation





This methode needs that the Gain is well known. It is suiteable for Amplifiers with high Gain or high Noise Figure.



Resolution Bandwidth [MHz]
Gain Ampliifer [dB]
Noise Level [dBm]


Noise Figure [dB]
Noise in RBW [dBm]




✈ Method to be used




1) Connect the output of the Amplifier to the input of the Spectrum Analyzer.
2) Power Amplifier on.
3) Leave the Input open. Set the Spectrum Analyzer to average.
4) Read the Power level on the Spectrum Analyzer. Curser might come in handy.
7) Hack your readings into the Calculator. Press Calculate Button.




✈ Share your thoughts



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t1 = 6577 d

t2 = 341 ms

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