Keysight (Agilent)
Keysight (Agilent) 3561A
Single Channel 100KHz FFT Analyser
0.061 Hz to 100 kHz Frequency Range
90 dB Dynamic Range
1 Channel Input Channels
±0.15 dB Amplitude Accuracy
178 μV to 50 V peak Input Voltage Range

| Attribute | Value |
|---|---|
| Frequency Range | 0.061 Hz to 100 kHz |
| Dynamic Range | 90 dB |
| Input Channels | 1 Channel |
| Amplitude Accuracy | ±0.15 dB |
| Input Voltage Range | 178 μV to 50 V peak |
| Measurement Functions | Spectrum, Power Spectral Density, Time Record, Orbit, Auto-correlation, Cross-correlation, Transfer Function, Coherence |
| Display | Built-in CRT display, 256 x 256 resolution |
| Storage | Built-in 3.5-inch floppy disk drive |
| Interface | HP-IB (IEEE-488) Interface |
| Power Requirements | 100/120/220/240 VAC, 48-66 Hz, 90 VA maximum |
Keysight Technologies 3561A Options:
- 3561A - 001 - Extended Non-volatile Memory
| Model | 3561A |
|---|
The Keysight (Agilent) 3561A Dynamic Signal Analyzer is a single-channel FFT-based solution for time and frequency domain analysis. It supports a frequency range from 0.000125 Hz to 100 kHz, with 0.25% frequency span resolution. With a dynamic range of 80 dB, amplitude accuracy of ±0.15 dB, and an amplitude measurement span from +27 dBV to -120 dBV, the 3561A is ideal for precision measurements. It features BNC(f) input connectors and 1 MΩ input impedance, offering compatibility with a wide range of test setups across electronics, mechanical, and electromechanical systems.
The 3561A delivers comprehensive analysis of waveforms, spectra, and transfer functions for diagnostics and design verification tasks in complex control applications.
Testwall can supply the used Keysight (Agilent) 3561A, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 3561A.





