BRL Test, Inc.

Electronic Test Equipment

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8903B - Keysight / Agilent Spectrum Analyzers


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  • Model: 8903B
  • Manufactured by: Keysight / Agilent
  • High end frequency limit: 21 Hz to 100 kHz, 0 to 99.99 dB, 50 mV to 300 V
  • Resolution Bandwidth Max.: 0.3% or better
  • Extra Specifications: Measures distortion, SINAD, signal-to-noise Measures true-rms ac volts, dc volts, frequency Low-distortion programmable source rms, average, and quasi-peak detection

Agilent 8903B Audio Analyzer

The Keysight/ Agilent 8903B audio analyzer provides unparalleled versatility and performance for audio measurements from 20 Hz to 100 kHz. The 8903B combines the functionality of a low-distortion audio source, high-performance distotion analyzer, frequency counter, ac voltmeter, dc voltmeter, and SINAD meter into one compact package. With microprocessor control of source and analyzer, the 8903B can perform stimulus-response measurements (such as signal-to-noise ratio and swept distortion) automatically with no additional equipment. For ease of use, most measurements on the 8903B are made with only one or two keystrokes. The 8903B automatically tunes and autoranges for maximum accuracy and resolution. For quick identification of input signals, the analyzer counts and displays the input frequency in all ac measurement modes.

  • Measures distortion, SINAD, signal-to-noise
  • Measures true-rms ac volts, dc volts, frequency
  • Low-distortion programmable source
  • rms, average, and quasi-peak detection

  • Frequency Range: 50 Hz to 100 kHz 
  • Display Range: 0 to 99.99 dB 
  • Accuracy: ±1 dB 
  • Input Voltage Range: 50 mV to 300 V 
  • Residual Noise (the higher of): 80 kHz BW: −85 dB or 17 µV 500 kHz BW: −70 dB or 50 µV

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