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Keysight (Agilent) U8903A Audio Analyzer

Keysight (Agilent) U8903A Audio Analyzer


The U8903A is the next-generation replacement for the widely used HP 8903B audio analyzer. To further ease the transition process, the U8903A audio analyzer features a built-in code emulator which allows the U8903A to read the old R2D2 programming codes of the 8903B. For existing customers, the code emulator is available via a new firmware upgrade.

Keysight (Agilent) U8903A  U8903A offers you the flexibility to measure and quantify both analog and digital audio applications in one box. With a two-in-one digital audio interface card that provides S/PDIF/AES3 and Digital Serial Interface, U8903A is suitable for applications such as analog and digital IC components, module design, wireless, and consumer electronics audio.

The Keysight (Agilent) U8903A audio analyzer combines the functionality of a distortion meter, SINAD meter, frequency counter, AC voltmeter, DC voltmeter and FFT analyzer with a low-distortion audio source. On the bench or in a test system, its accuracy and versatility will help you make an audible difference in your end product.

Keysight (Agilent/HP) U8903A Features:


  • Analog and Digital Audio Analysis
  • Characterize signal-to-noise ratio, SINAD, IMD, DFD, THD+N ratio, THD+N level, crosstalk, and more
  • View numerical and graphical displays of measurement results
  • 2 in 1 screen (generator and analyzer in the same display screen)


  • 5ppm frequency accuracy for generator and analyzer
  • ±1% amplitude accuracy for generator and analyzer
  • -101dB analyzer residual distortion + noise at 20Hz to 20kHz
  • ±0.01dB signal flatness

Automation & communication interface:

  • LXI compliant
  • USB 2.0, LAN and GPIB connectivity
  • SCPI and IVI-COM
  • Code compatible with HP8903B

Digital audio features (option 113/4/5 only):

  • S/PDIF/AES3 and/or Digital Serial Interface (DSI)
  • Mutiple DSI formats: I2S, Left Justified, Right Justified, DSP
  • Wide logic level input range from 1.2V to 3.3V
  • Audio bit: 8bit to 24bit

Contact TestWorld to get the best pricing on a used/refurbished Keysight (Agilent) U8903A Audio Analyzer. Rental and lease options available.

Configurable Options for the Keysight (Agilent) U8903A:

U8903A-101 Male BNC to male BNC cable, 1.2m, jade gray
U8903A-102 Male BNC to male RCA cable, 2m, black
U8903A-103 Male XLR to female XLR, 2m, black
U8903A-105 Cable, digital serial interface
Connector, customized 25pin D-SUB loopback for Digital Audio self-test
U8903A-107 Cable, accessory- Male XLR-2 male BNC analyzer, 0.26m
U8903A-108 Cable, accessory- Female XLR-2 male BNC generator, 0.26m
U8903A-109 BNC accessory kit
U8903A-113 Audio analyzer 2 channel with 2 in 1 digital audio card, AES3-SPDIF and DSI
U8903A-114 Audio analyzer 2 channel with digital audio card, AES3-SPDIF
U8903A-115 Audio analyzer 2 channel with digital audio card, DSI
U8903A-1A7 Calibration + Uncertainties + Guardbanding
U8903A-200 Audio analyzer 2 channel
U8903A-A6J ANSI Z540-1-1994 Calibration
U8903A-ACF Japan – Japanese quick start guide, printed


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