Agilent/Keysight 3588A

The Agilent/Keysight 3588A is a spectrum analyzer for frequency-domain analysis spanning 10 Hz to 150 MHz. It delivers precise spectral measurements, scalar network analysis, and signal characterization through dual operating modes: traditional swept spectrum analysis and fast FFT-based narrowband zoom. The instrument combines amplitude accuracy better than ±0.4 dB with dynamic range up to 112 dB, making it suitable for audio equipment testing, telecommunications, and signal monitoring applications.

Technical Specifications

Frequency Range: 10 Hz to 150 MHz Measurement Capabilities: Spectrum analysis, scalar network analysis, noise measurement, signal-to-noise ratio measurement, power measurement, and frequency measurement. Amplitude Accuracy: Better than ±0.4 dB typical (including absolute, temperature, and frequency response errors from 200 kHz to 150 MHz). Dynamic Range: 80 dB (low-distortion mode); 112 dB (maximum signal-to-noise). Resolution Bandwidth:

• Swept Mode: 1.1 Hz to 17 kHz


• Narrowband Zoom Mode: 11 mHz to 360 Hz Frequency Resolution: As narrow as 1.1 Hz (-3 dB bandwidths); 0.1 Hz resolution available. Input Specifications:


• Maximum Measured Input: +20 dBm


• Input Impedance: 50 Ω, 75 Ω, and 1 MΩ selectable (1 MΩ from 10 Hz to 40 MHz)


• Return Loss: >20 dB Tracking Generator:


• Output: Type-N connector


• Amplitude: +10 dBm maximum; -54.9 dBm minimum


• Absolute Amplitude Accuracy: ±1 dB


• Frequency Response: ±1 dB


• Impedance: 50 Ω (75 Ω with adapter)

Key Features

• Swept spectrum mode with sharp digital IF filters delivers measurement speeds up to four times faster than conventional swept-tuned analyzers


• Narrowband zoom mode provides 40-400× faster spectral measurements using FFT implementation


• Fully-synthesized tracking generator for scalar network analysis


• Built-in frequency counter for rapid signal identification


• HP Instrument BASIC support for automated signal monitoring


• 3.5-inch flexible disk drive


• HP-IB Interface for remote control and data logging

Typical Applications Audio equipment characterization, telecommunications testing, baseband and IF signal analysis, and general-purpose frequency-domain monitoring.

Compatibility & Integration Standard 50 Ω RF connectors with selectable 75 Ω impedance option via included adapter. HP-IB interface enables integration into automated test systems.