Keysight (Agilent)
Keysight (Agilent) 35665A
102.4kHz Dual Channel Dynamic Signal Analyser
DC to 102.4 kHz Frequency Range
2 Number of Input Channels
90 dB Dynamic Range
Up to 800 lines Frequency Resolution
±51 V peak (with 10:1 probe), ±5.1 V peak (direct) Input Voltage Range

| Attribute | Value |
|---|---|
| Frequency Range | DC to 102.4 kHz |
| Number of Input Channels | 2 |
| Dynamic Range | 90 dB |
| Frequency Resolution | Up to 800 lines |
| Input Voltage Range | ±51 V peak (with 10:1 probe), ±5.1 V peak (direct) |
| Amplitude Accuracy | ±0.15 dB |
| Analyzer Type | Dynamic Signal Analyzer (FFT-based) |
| Display | 9-inch monochrome CRT display |
| Interface/Connectivity | GPIB (IEEE-488), RS-232 |
| Power Requirements | 100–240 V AC, 50/60 Hz |
Keysight Technologies 35665A Options:
- 35665A - 1D0 - Computed Order Tracking Measurements
- 35665A - 1D1 - Real-Time Octave Measurements
- 35665A - 1D2 - Swept-Sine Measurement
- 35665A - 1D3 - Curve Fit/Synthesis
- 35665A - 1D4 - Arbitrary Waveform Source
- 35665A - 1C2 - HP Instrument BASIC
- 35665A - 1C1 - Add 2 MB Memory
- 35665A - ANA - Add 6 MB Memory
- 35665A - 1F0 - U.S. PC-Style Keyboard (other selected local keyboards are available)
| Model | 35665A |
|---|
The Keysight (Agilent) 35665A is a 2-channel Dynamic Signal Analyzer tailored for vibration, acoustics, and control system analysis. It offers one-channel measurements up to 102.4 kHz and dual-channel measurements up to 51.2 kHz, with resolution options of 100, 200, 400, or 800 lines. The unit includes a 3.5" floppy drive, tachometer input, and an extensive range of source types—random, burst, pink noise, sine, swept-sine, arbitrary, and chirp modes. An optional 3.2 MSample buffer allows long-duration time-capture. Measurements include spectrum, PSD, response functions, waveforms, correlations, and statistical functions like histogram, PDF, and CDF.
Advanced options include real-time octave analysis, computed order tracking, swept-sine analysis, curve fitting, synthesis, and arbitrary waveform generation, making the 35665A highly configurable for advanced diagnostic and design tasks.
Testwall can supply the used Keysight (Agilent) 35665A, 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) 35665A.





