Anritsu MS9720A – Optical Spectrum Analyzer

Anritsu MS9720A – Optical Spectrum Analyzer,Portable optical spectrum analyzer for precise optical signal measurement across broad wavelengths supporting fiber optic system testing and maintenance with high sensitivity.

Model
Anritsu MS9720A
Calibration
Available on request
Price
$3,500
Status
In stock
RFQ ref
MS9720A
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This unit

The Anritsu MS9720A is a portable optical spectrum analyzer for precise measurement of optical signals across the C-band and L-band wavelengths. It delivers high sensitivity and wavelength accuracy suitable for WDM system commissioning, maintenance, and troubleshooting in fiber optic networks. The instrument uses diffraction grating dispersion to resolve and measure individual wavelength channels with 5 pm read resolution and 1 pm display resolution.


Technical Specifications

Wavelength Measurement

  • Measurement range: 1450 to 1650 nm

  • Accuracy: ±20 pm (1530–1570 nm after calibration), ±0.3 nm (full range after calibration)

  • Read resolution: 5 pm

  • Display resolution: 1 pm

  • Stability: ±5 pm (11-point smoothing, 1 minute)

  • Setting resolution (3 dB filter bandwidth): 0.1, 0.2, 0.5, 1.0 nm Level Measurement

  • Measurement range: −87 to +10 dBm (1450–1600 nm, 0–30 °C); −72 to +10 dBm (1600–1650 nm, 0–30 °C)

  • Accuracy: ±0.4 dB (at 1550 nm, −23 dBm)

  • Dynamic range: 58 dB (1 nm from peak), 53 dB (0.5 nm from peak)

  • Flatness: ±0.1 dB (1550 ±20 nm)

  • Stability: ±0.02 dB (1 minute, constant temperature) Reception & Source

  • Optical reception sensitivity: −87 dBm

  • Built-in SLD source output: >−40 dBm/nm (at 1550 nm)

  • Optical return loss: 35 dB (at 1550 nm) Display & Memory

  • Display: 6.4-inch color TFT-LCD with split-screen capability

  • Measurement memories: three

  • Traces: three Interfaces & Storage

  • Communication: GPIB, RS-232C, VGA output

  • Data storage: 3.5-inch FDD and HDD Optical Connectors

  • User replaceable: FC, SC, ST, DIN, HMS-10/A

  • Factory options: E2000, FC-APC, SC-APC, HRL-10

  • Applicable fiber: 10/125 μm SM (ITU-T G.652) Power

  • Input: Universal 85–132 Vac / 172–250 Vac, 47.5–63 Hz

  • Consumption: 150 VA (max.)


Key Features



  • High wavelength accuracy after calibration for precise channel identification

  • Three independent measurement traces with difference computation

  • Internal optical attenuator extends level measurement range to +23 dBm

  • Interchangeable connectors accommodate diverse field installations

  • Built-in SLD reference source eliminates external light source dependency


Typical Applications



  • WDM system performance verification and acceptance testing

  • Optical signal monitoring and channel power measurement

  • Wavelength calibration and drift detection

  • Fiber plant commissioning and maintenance

  • Network troubleshooting and spectral analysis


Compatibility & Integration The MS9720A accepts standard SMF connectors and integrates with test control systems via GPIB and RS-232C interfaces. Measurement data export to floppy and hard disk enables post-processing and archival workflows.

Specifications

ParameterValue
Power Range (dBm)−68 to +23 dBm (with internal attenuator), −72 to +10 dBm (1600–1650 nm), −87 to +10 dBm (1450–1600 nm) | Voltage / Current Range: 150 VA max., 47.5–63 Hz, 85–132 Vac / 172–250 Vac | Wavelength Range: 1450 to 1650 nm

Frequently Asked Questions

What does the Anritsu MS9720A measure and what wavelength range does it cover?
The MS9720A is a portable optical spectrum analyzer designed for precise optical signal measurement across the C-band and L-band regions, covering wavelengths from 1450 to 1650 nm. It delivers sensitivity down to −87 dBm in the 1450–1600 nm band and −72 dBm in the 1600–1650 nm band, with a full power range of −68 to +23 dBm using the internal attenuator. This makes it ideal for fiber optic system testing, maintenance, and troubleshooting in telecommunications and data center environments.
What is the condition of this used MS9720A, and what has been verified?
This unit is offered in used condition and has been inspected for basic operational functionality prior to listing. We verify that the instrument powers on and responds to control inputs; however, we recommend obtaining calibration certification to ensure measurement accuracy meets your specific application requirements. Calibration services are available separately, starting at $450.
Is calibration available for the MS9720A, and what does it cost?
Yes, calibration is available separately for the MS9720A, with pricing starting at $450. The calibration service verifies the wavelength accuracy and power measurement linearity across the operating range to ensure the instrument meets manufacturer specifications. Contact us for a formal quote and turnaround time based on your location and service requirements.
What interfaces and connectivity options does the MS9720A support?
The MS9720A features GPIB (IEEE-488) connectivity for remote control and data transfer to external computers and automated test systems. The instrument operates on single-phase AC power (85–132 Vac or 172–250 Vac, 47.5–63 Hz, 150 VA maximum) and integrates with Anritsu's optical measurement software suite for data logging and analysis. Specific driver availability and software compatibility should be confirmed at the time of purchase.

Anritsu MS9720A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Anritsu MS9720A. Calibration covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Common Anritsu MS9720A faults: wavelength motor failure, internal light source dimming, detector sensitivity loss. Common repairs include wavelength motor servicing, internal broadband source replacement, and detector recalibration after extended use.

Anritsu MS9720A price

This Anritsu MS9720A is listed at $3,500. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Anritsu MS9720A calibration cost

NIST-traceable calibration for the Anritsu MS9720A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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