Noise Figure Measurement

Y Factor method, Spectrum Analyzer dBm calibration not required. Examples using VNWA Example using SSA3021X Spectrum analyzer 2N5109 NF using VNWA RFD-2315 Calibrated Noise Source Homebrew Noise Source
Steps
Start Noise Figure Spreadsheet (reference) Enter Noise Source ENR dB, 15.6 in Example Connect Noise Source to Spectrum Analyzer (SA) Measure power with Noise Source Off, -77 in Example Measure power with Noise Source On, -65.8 in Example Connect Noise Source to DUT Input and DUT output to SA Measure power with Noise Source Off, -50.8 in Example Measure power with Noise Source On, -38.4 in Example Read DUT NF and Gain (Green)
Spreadsheet Example