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ANRITSU | Signal Spectrum Analyzers

Spectrum Analyzer/Signal Analyzer MS2840A

The MS2840A Spectrum/Signal Analyzer is a high-performance instrument offering best-in-class close-in phase noise, making it ideal for R&D and manufacturing of wireless transmission equipment and RF components. Supporting a frequency range up to 44.5 GHz, it enables precision measurements for transmitter spurious, noise figure, and advanced vector modulation analysis in applications ranging from microwave backhaul to private mobile radio (PMR) systems..

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The Anritsu MS2840A is engineered for professionals needing ultra-low phase noise signal analysis and advanced spectrum evaluation in high-frequency systems. With support for frequencies up to 44.5 GHz, this analyzer stands out in its class by offering exceptionally clean spectral performance, especially for carrier close-in measurements.

Its phase noise performance of –123 dBc/Hz at 1 GHz (and up to –140 dBc/Hz at 150 MHz on certain models) ensures high fidelity analysis of RF carriers, spurious emissions, and oscillator stability — essential in developing microwave wireless links, VHF/UHF PMR systems, and sensitive transmitter designs.

The signal analyzer mode supports visualization tools like Power vs. Time, Spectrogram, CCDF, and Phase vs. Time with up to 125 MHz resolution bandwidth, providing versatile signal diagnostics. Built-in modulation and demodulation functions extend its utility to analog and vector signal analysis, enabling real-time insights into communication quality.

Optional upgrades for noise figure measurement and phase noise testing make the MS2840A a true all-in-one test platform. These features eliminate the need for external setups, ensuring cost-effective and space-saving lab configurations for both R&D and production lines.

  1. Frequency Range: Up to 44.5 GHz.

  2. Exceptional Phase Noise Performance:
    –123 dBc/Hz @ 1 GHz (10 kHz offset) — all models
    –138 dBc/Hz @ 1 GHz and –140 dBc/Hz @ 150 MHz (3.6 & 6 GHz models).

  3. Advanced Signal Analyzer Functions: Frequency vs. Time, Power vs. Time, Spectrogram, CCDF, and more.

  4. Resolution Bandwidth: Up to 125 MHz for signal analysis.

  5. Comprehensive Tx Analysis Tools: Channel Power, OBW, ACLR, Spectrum Mask, etc.

  6. Vector Modulation and Analog Demodulation: FM/AM/ΦM signal support.

  7. Built-in Signal Generator Option: Enables TRx and BER measurements in one unit.

  8. Optional Phase Noise Measurement: Measures DUT phase noise using analyzer’s own ultra-low phase noise.

  9. Optional Noise Figure Measurement: Accurate NF testing up to 44.5 GHz.

  10. Ideal for 5G, PMR, satellite, and microwave system design and validation.

Parameter Details
Model Name MS2840A
Frequency Range Up to 44.5 GHz
Phase Noise (10 kHz offset) –123 dBc/Hz @ 1 GHz (all models) / –138 dBc/Hz @ 1 GHz (3.6 & 6 GHz models)
Additional Phase Noise (measured) –140 dBc/Hz @ 150 MHz
Signal Analyzer Bandwidth Up to 125 MHz
Demodulation Modes FM, AM, ΦM, Vector
Signal Analysis Functions Power vs. Time, Spectrogram, Phase vs. Time, CCDF, Frequency Counter
Transmitter Evaluation Tools Channel Power, OBW, ACLR, Spectrum Mask, etc.
Optional Generator Output Supports built-in TRx and BER testing
Optional Phase Noise Measurement Yes
Optional Noise Figure Measurement Yes, up to 44.5 GHz