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Decimator D4 Highlights Video

Decimator D4 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.

Built-In Spectrum Monitoring

D4 is ideal for unattended monitoring of carriers in case of signal problems, satellite transponder compression or ground station equipment failure.

You can monitor up to 100 carriers within defined limits for power in a carrier and presence of a carrier. Any anomalies notify interested parties via email or SNMP when a signal is out of limits.

For enhanced spectrum monitoring, view the Spectator add-on option.

Cross-Pol Isolation Measurements

D4 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.

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

Stay tuned for video coming soon.

API - Remote Management Protocol

Decimator 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.

Stay tuned for video coming soon.

Waterfall Display

Built into Decimator D4, 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.

  • Multiport Decimator D4

    The multiport Decimator D4 is ideal for local or remote monitoring of multiple communications or broadcast carriers within a frequency range of 5 MHz to 6.5 GHz. The multiport unit installs in a 1RU 19” rack mount chassis and is available with either four or eight input ports.

  • PCIe Card Decimator D4

    The PCIe card Decimator D4 is designed for integration in your own enclosure or in a computer PCIe slot.

  • Portable Decimator D4

    The portable Decimator D4 fits into a standard laptop case and is useful for technicians to investigate problems in the field. The portable D4 is easy to set up and connects to a laptop for signal investigation on the go.

Web Based User Interface

Decimator 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 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 center 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 over 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


154,60 KO

PC Ie Card Decimator D4


187,24 KO

Portable Decimator D4


137,69 KO

Spectator Decimator D4


376,05 KO

Detector Decimator D4


327,21 KO

Decimator D4 Quick Tour Calian AT


1,16 MO

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