4 Calibration Procedures94 Keysight 33210A Service GuideLow Frequency Flatness AdjustmentThe Low Frequency Flatness adjustment calculates the flatness response of3 attenuator paths with the Elliptical filter and 2 attenuator paths with the LinearPhase filter.1 Set the DMM to measure Vrms. Make the connections shown on page 92.2 Use the DMM to measure the output voltage for each of the setups in the tablebelow.3 Using the numeric keypad or knob, adjust the displayed voltage at each setupto match the measured voltage. Select ENTER VALUE.4 After performing setup 38:a If your calibration procedures require you to verify the adjustment justmade, exit the calibration menu and perform “Low Frequency FlatnessVerification” on page 71.Setup Nominal SignalFrequency Amplitude29[a][a] Constants are stored after completing this setup.1 kHz 0.56 Vrms Flatness for 0dB, Elliptical Filter30[a] 100 kHz 0.56 Vrms Flatness for 0dB, Elliptical Filter31[a] 1 kHz 0.56 Vrms Flatness for 0dB, Linear Phase Filter32[a] 100 kHz 0.56 Vrms Flatness for 0dB, Linear Phase Filter33[a] 1 kHz 1.7 Vrms Flatness for +10dB, Elliptical Filter34[a] 100 kHz 1.7 Vrms Flatness for +10dB, Elliptical Filter35[a] 1 kHz 5.6 Vrms Flatness for +20dB, Elliptical Filter36[a] 100 kHz 5.6 Vrms Flatness for +20dB, Elliptical Filter37[a] 1 kHz 5.6 Vrms Flatness for +20dB, Linear Phase Filter38[a] 100 kHz 5.6 Vrms Flatness for +20dB, Linear Phase Filter
