Hewlett Packard HP 3561A Dynamic Signal Analyzer – FFT Spectrum, 100 kHz, GPIB

Hewlett Packard HP Model: 3561A Dynamic Signal Analyzer Comes with Operating Manual. Condition is used. Power on. ðï¸ Hewlett Packard HP 3561A Dynamic Signal Analyzer â 100 kHz FFT Spectrum & Signal Analysis The HP 3561A is a high-performance dynamic signal analyzer built for precision vibration, noise, acoustics, and general-purpose spectrum analysis . Known for its rugged design and lab-quality accuracy, this unit features real-time Fast Fourier Transform (FFT) processing up to 100 kHz, making it ideal for mechanical, structural, and electrical diagnostics. Originally manufactured by Hewlett-Packard (now Keysight Technologies), the 3561A is widely trusted in R&D, field service, and production environments for measuring frequency response, harmonic distortion, and resonance behavior. â Key Features & Capabilities Model : HP 3561A Frequency Range : DC to 100 kHz Resolution Bandwidths : 400 µHz to 1.25 kHz Dynamic Range : Up to 80 dB Input Channels : 1 Real-Time Bandwidth : Up to 25 kHz Signal Processing : Real-time FFT, averaging, tracking filters Display : Large backlit screen with graphical and numeric display Built-in Functions : Spectrum and waveform analysis Transfer functions Power spectral density (PSD) Coherence and phase measurements GPIB Interface : IEEE-488 for remote control and data logging ð­ Applications Predictive maintenance and vibration diagnostics Machinery condition monitoring Modal and structural analysis Audio and acoustics testing Electronic circuit and system response characterization