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Decimator D4 Spectrum Analyzer - Video Overview

Decimator D4 spectrum analyzer includes a wide frequency range, DVB-S/S2/S2X signal digital demodulation with a constellation display, signal analysis, advanced carrier monitoring and more. Watch the video to see these features in action.

Decimator D4 Spectrum Analyzer Highlights

  • Secure web browser user interface can be run on all devices
  • Analysis frequency range 5 MHz to 6.5 GHz
  • Carrier monitoring, cross-pol isolation measurement
  • DVB-S/S2/S2X demodulation and signal analysis
  • Constellation display and waterfall display
  • Programmable email & SNMP alarms can be set up to notify multiple people immediately if a signal is out of pre-set thresholds
  • Up to 10 concurrent remote users can connect to the Decimator D4 and perform ad-hoc measurements

Cross-Pol Isolation Measurements

Decimator D4 spectrum analyzer measures and displays the cross-pol isolation of remote satcom and VSAT terminals.

Both co-pol and cross-pol signals are displayed at once, making it easy to see the measured isolation. The measured results can be exported and stored to provide a record of cross-pol performance during regular operation or carrier line-up.

This feature is only available for the multiport Decimator.

Spectator Add-On - Advanced Spectrum Monitoring

The Spectator software add-on license offers advanced spectrum monitoring capabilities for Decimator D4 spectrum analyzer.

Spectator allows you to view up to 100 carriers at a glance in a single window, play back individual carrier traces, view trend plots and more.

API - Remote Management Protocol

The Decimator Spectrum Analyzer includes an application program interface (API) for remote management, configuration, monitoring and automated measurements.

This API allows easy integration of Decimator into customer-furnished systems or products, such as satcom terminals, antenna control units, VSAT hubs and other similar systems.

The Decimator software includes an SNMP status interface for unit health monitoring.

Detector Add-On - Advanced Signal Monitoring

The Detector software add-on license allows users to display multiple signal constellation displays on a single screen.

Detector helps you monitor constellation diagrams from up to 100 carriers at a time for analyzing demodulated signal characteristics. The display also includes a historical view and trend plots.

Waterfall Display

Built into Decimator D4 Spectrum Analyzer, Waterfall Display shows a heat map over time of the trace power values. All the current settings from the Spectrum view are loaded into the Waterfall view, such as center frequency, span and RBW for easy configuration.

This display makes it easy to see signal variation over time with a wide frequency range. Intermittent interference signals are easily spotted on the waterfall display.

Illuminator Add-On - Advanced Spectrum Monitoring and Signal Analyses for Multiple Decimators

The Illuminator software add-on is ideal for users with multiple Decimators. It’s a multi-site carrier monitoring solution with centralized monitoring and control of your entire set of carriers.

Illuminator provides the same dashboard visual features of Spectator and Detector to view your current results from multiple remote sites, and it allows you to navigate your long-term results for a particular carrier at any remote site.

Watch Illuminator Decimator D4 Video Series

Web-Based User Interface

Decimator Spectrum Analyzer includes a built-in user interface that’s accessible using a standard web connection. All common spectrum analyzer settings and functions are available, including:

  • Save and recall configurations for quick repeat measurements

  • Export measurement results into reports for sharing or into spreadsheets or other applications for detailed analysis

  • Multiple markers make power level measurements easy to perform

Custom Versions Available

Contact our Decimator Spectrum Analyzer experts to discuss your application and any custom design requirements. We can provide:

  • Custom designs supporting other frequency bands

  • Custom designs supporting other form factors

  • Private labelling/branding and packaging options


D4 provides teleport operators with remote digital spectrum analysis and real-time, low-cost carrier monitoring of uplink and downlink carriers at RF L-band or IF 70/140 MHz. 1RU rack mount chassis allows remote access for up to 10 simultaneous users.

Broadcast and DSNG

D4 L-band spectrum analyzer's built-in carrier monitoring allows broadcasters, DSNG vehicles and back-haul sites to connect to the satellite. To acquire the satellite signal, peak the antenna and monitor your uplink signal performance. Ops centre support can remotely assist in setup.


Decimator spectrum analyzers are used in cruise ships, super-yachts and commercial ocean-going vessels to provide remote and on-board monitoring and analysis of satellite signals. Reliable communications and safety at sea go hand in hand. Proudly serving customers for more than 50 years.

Oil and Gas

Decimator D4 provides the oil and gas sector with reliable remote RF signal monitoring of communication infrastructure.  Offshore and land-based production rigs utilize several signal types, supported by D4, to integrate SCADA & M2M: satellite, WIMAX, Wi-Fi, LTE cellular, 2-way radio.

Distributed Antenna Systems

Decimator monitors distributed antenna system (DAS) cellular, Wi-Fi and 2-way radio signals including HF frequencies alerting you to network availability and signal quality issues. Available in multiport configurations or API solution to integrate into DAS antenna network management solutions.

Government and Military

Integrate into VSAT terminals, mobile command and control systems for military and government applications. Through the API, integrate with a wide range of common signal monitoring/management systems. In-house engineering can custom build or choose from our COTS spectrum analyzer products.


Multiport Decimator D4


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PCIe Card Decimator D4


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Portable Decimator D4


137.69 KB

Spectator Decimator D4


376.05 KB

Detector Decimator D4


327.21 KB

Illuminator Decimator D4


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Decimator D4 Quick Tour Calian AT


1.16 MB

Decimator D4 Users Manual


5.48 MB

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