RF / Receiver Noise

Friis Noise Formula Calculator

Cascade gain and noise figure stages to estimate total receiver noise figure and equivalent input noise temperature.

Stages Stage 1 gain dB Stage 1 NF dB Stage 2 gain dB Stage 2 NF dB Stage 3 gain dB Stage 3 NF dB Reference temp K

Total gain -- dB Total noise factor -- Total noise figure -- dB Input noise temp -- K

Stage	Gain	Noise figure	Friis contribution	Cascade NF