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🔇 Noise Figure & Cascaded Noise Calculator
4S6TMP.com — Friis formula for cascaded RF stages
⚙️ Stages (up to 3)
Stage 1 (e.g. LNA)
NF (dB)
Gain (dB)
Stage 2 (e.g. Mixer)
NF (dB)
Gain (dB)
Stage 3 (e.g. IF Amp)
NF (dB)
Gain (dB)
Calculate
📊 Results