Advanced Ice Analysis

Now more than ever, operating in ice-threatened regions such as the Arctic is a vital part of marine operations.  

The sigma S6 Ice Navigator™ is the most valuable ice navigation solution for ice defence, ice breaking, adventure tourism, and port access, designed with safety, efficiency, and environmental responsibility in mind.

The marine industry's choice for ice-class fleets is introducing enhanced capabilities for your ice navigation and management needs. Now you can see even more using sigma S6 Ice Navigator™ with Advanced Ice Analysis.

New features in the next generation sigma S6 Ice Navigator™ include:

NEW Detect Ice Ridges Within Ice Floes and Fields

Enhanced situational awareness for your ice operations, know exactly where ice ridges are whether in an ice field or on an ice floe.

Ice Ridge Identification

NEW Detect Icebergs Embedded in Pack Ice

Determine the safest, most efficient route through ice fields and avoid icebergs which are otherwise difficult to see on radar.

NEW Detect and Outline Open Water Leads

Automatically detect and outline open water leads to assist with route planning through dynamic ice environments.

NEW Continued Improvement of State-of-the-Art High Resolution Imaging

Further enhancements have been made to our industry-leading high-resolution imaging. Get the best sea ice imaging and more reliable tracking of bergy bits and growlers amongst sea clutter.

High Resolution Imaging

NEW Coastline Mapping

Incorporates a world coastline map to eliminate false positive targets when operating near land.

Coastline Maps

NEW sigma S6 Connect

A web-enabled interface which makes it possible to integrate all of your sigma S6 data into your external systems using open standard formats.

sigma S6 Connect

A key Part of your Ice Management Plan

The sigma S6 Ice Navigator™ Ice Detection and Navigation system enables ships operating in ice to differentiate between open water, ice pans, leads in ice fields, and the thicker ice ridges that impact operations in ice zones.

Detect Big and Small

Ice Navigator™ is industry-proven to detect both large icebergs and small bergy bits and growlers that can significantly damage a vessel or platform.

Round the Clock Coverage

The overall improvements in situational awareness provided by Ice Navigator™ occur across a wide range of sea states, weather, and daylight conditions, providing tactical information essential for real time route planning and decision-making.

Flexible and Adaptable

Rutter’s sigma S6 Ice Navigator™ is a dynamic, flexible software system that integrates with other mission critical systems. Designed to evolve over time, Rutter’s sigma S6 Ice Navigator™ was created to meet both current and future requirements. Ongoing ice research partnerships ensure that our features remain current and that we continue to innovate and deliver lasting value.

The Chosen Solution for Ice-Class Fleets and Arctic Drilling Operations

The sigma S6 system was specifically developed for ice detection in the ice-threatened oilfields of Eastern Canada. Rutters Ice Navigator™ installation base now includes many of the worlds ice breaker fleets as well as tankers, bulk carriers, research vessels and coast guard vessels from countries operating in Arctic and subarctic regions.

Ice Navigator™ systems have also been selected by oil and gas companies as part of their ice defence and ice management solutions where they are resident on platforms, drill ships, and specialty support vessels.

Product Features


    High Definition Ice Imaging

    High resolution image processing provides high definition ice imaging, leading to superior detection and tracking. The sigma S6 user-interface provides adjustments to radar tuning to further customize the on-screen image.


    AIS Overlay with Class A and B Targets

    Class A and B AIS target overlay options are available with full information, radar tracks and target association display. The addition of class B targets enables the monitoring of transponders attached to ice threats and the verification smaller vessels in an operating area.


    Track Multiple Targets

    The sigma S6 ice Navigator™ advanced target tracker can monitor and track up to 300 targets simultaneously, ensuring the operator has complete awareness of all activity and targets within range of the radar. 

  • Multiple Client Options

    The sigma S6 remote client feature allows numerous remote clients to view the master system. The sigma S6 SeaBridge option is a low-bandwidth solution facilitating information sharing between a remote radar location and multiple networked clients viewing the Ice Navigator™ display.


    Web-enabled interface allows external systems, such as Google Earth Pro and GIS platforms, to integrate with the sigma S6 Ice Navigator™ to display radar imaging, ice target information, and ice outlines.


    coastline masking

    Coastline Masks provide automatic masking of land areas based on a global coastline database. This prevents land areas from being classified as ice targets and greatly simplifies system operation when working near land. 

  • Camera Integration

    Integration and control of IR cameras is facilitated through Rutters SeaView interface. Features include the ability to support multiple cameras, intelligent selection of a best camera for specific targets, and automatic slewing to ice targets entering a guard zone. These features support quick decision making in addressing potential threats and possible interruptions to operations.

Installations By Country


One platform, many solutions

Rutter’s sigma S6 technologies connect to most commercially available marine radars, enabling our customers to extract additional value and effectiveness from their existing navigation radar assets. The option of a dedicated high performance radar solution as an input sensor can also be provided to suit your specific requirements. As with all of Rutter’s sigma S6 product lines, Ice Navigator™ can be combined with any other Rutter system: Oil Spill Detection, Small Target Surveillance, SeaFusion Data Integration, and the WaMoS® II Wave Measuring System offered by OceanWaveS GmbH.

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Rutter Ice Navigator™ Ice Detection and Navigation System


  • Ice Detection
    Screen Capture and Video Recording
    Tracking Software (300 Targets)
    Scan Averaging (32 Scans)
    Motion Compensation
    Multiple Remote Clients
    Cursor Serial Port Output (IR Camera Input)
    TTM NMEA Serial Port Outputs (IR Camera/ECDIS Inputs)
    sigma S6 Connect
    Coastline Masking

  • options       

    Raw Data Recording
    SeaBridge - Multiple Client - Low Bandwith Communication Link
    SeaFusion - Multiple Radar - Single Display
Note: All models accept standard serial/network inputs from navigational instruments (NMEA 0183) including: AIS, wind anemometer, echo sounder, GPS, and gyro compass.