The HP / Agilent 3561A is a single channel Fast Fourier Transform (FFT) signal analyzer covering the frequency range to 100 kHz. The 3561A measurement capabilities include magnitude, phase and time displays in a narrow band, 1/3 octave, or full octave format. The 3561A measures input signals from 27dBV (22.39 Vrms) down to –51 dBV (2.82 mVrms). The signal processing capabilities of the 3561A include rms averaging, rms exponential weighting averaging and time averaging.
This product was manufactured by Agilent or Hewlett-Packard many years ago. We provide this page to assist you in using or replacing your product.
You can receive free self support via the Agilent website only; technical support is not available through other Agilent support channels. Calibration may still be available from an Agilent Service Center if no repair or parts are needed.