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Advantest Rohde & Schwarz R4131B RF/Microwave Spectrum Analyzer 10 kHz–3.5 GHz

UsedAdvantest Rohde & SchwarzSignal analysersGermany

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Shipping weight:
15,00 kg
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Specifications 3

Brands
Advantest Rohde & Schwarz
New/Used
Used
Shipping weight:
15,00 kg

Product description

Portable RF/microwave spectrum analyzer 10 kHz–3.5 GHz, AFC, memory recall, CISPR QP measurement, GPIB interface

The R4131B RF/Microwave Spectrum Analyzer from Advantest Rohde & Schwarz offers:

  • Frequency range: 10 kHz to 3.5 GHz
  • Resolution bandwidth: 1 kHz to 1 MHz (3-dB points), 9 kHz & 120 kHz (6-dB points in QP mode)
  • Dynamic range: Average noise level of -116 dBm (or -114 dBm for R4131BN) + 1.55f(GHz) dB max, at 1 kHz RBW and 10 Hz video filter
  • Frequency response: ±1 dB (100 kHz–2 GHz), ±2 dB (10 kHz–3.5 GHz) with 10 dB attenuation
  • Memory function: Stores up to 3 measurement condition sets including waveforms, with auto-recall on power-up
  • Automatic Frequency Control (AFC) for stable spectrum analysis
  • Support for external tracking generators (TR4153A/B, TR4154) to measure frequency characteristics over wide dynamic range
  • Interfaces and outputs: Standard GPIB for system integration, direct plotting, and video output
  • Physical dimensions: 300 mm (W) x 177 mm (H) x 460 mm (D)
  • Weight: 10 kg

The instrument is designed for diverse applications including harmonic measurements at 900 MHz mobile bands, satellite broadcast field strength measurement, and CATV system evaluation and maintenance. It is delivered with an instruction manual and is tested functional in used condition.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 6 November 2026