Navi-Radar 4000 / Chart-Radar


Navi-Radar 4000 performs all the functions of radar and ARPA and can overlay electronic charts and AIS targets on a radar picture and is compliant with latest IMO and IEC standards.

Features and Benefits


  • User friendly, clear and logically structured interface
  • Handles primary radar information
  • Acquires and processes ARPA tasks (up to 256 targets)
  • Displays AIS target on the radar display and targets parameters output on the information panel
  • Official ENC/S-57 and Transas ТХ-97 format electronic vector charts overlay features assist safe and convenient navigation
  • Displays routes loaded from external systems’ ECDIS/positioning system
  • Associates AIS targets with ARPA targets
  • Can connect up to 2 GPS, 2 GYRO and 2 LOG+1 DLOG
  • Configuration of 2 Radar stations with SW scanner interswitch and provides ability to change rights of navigational Master (station with rights for navdata sources)
  • Displays information from 2 targets for data comparison
  • Fine adjustment of brilliance and contrast for perfect radar picture tuning
  • Flexible in both configuration and chart functionality

The AIS Functions

Interfacing of AIS with the NR 4000 produces the following benefits:

  • Receives and displays data on other targets of Class A and B using AIS
  • Displays own ship data transmitted by AIS transponder connected to the Navi-Radar
  • Turns off the display of AIS target data on screen and fully turns off AIS interface
  • Dead reckoning of AIS targets by the user set parameters
  • Displays AIS target contour on the scales commensurate with ship dimensions.

The ARPA Functions

The ARPA functions have the following benefits:

  • Target extraction, acquisition and tracking
  • Automatic and manual selection of targets for the display
  • Automatic numbering of tracked targets
  • Enables a trial collision avoidance manoeuvre.

Effective and User Friendly Chart Functions

Navi-Radar 4000 allows the single click switch between chart displays, automatic chart loading, and zooming whilst displaying current chart information.

Chart Overlay Functionality

Chart formats compatible with NR 4000:

  • Vector TX-97 charts (TX-97 chart format)
  • Official ENC/S-57 charts

Functionality and display of chart information:

  • Chart information includes:
    • coastline
    • own ship safety contour
    • dangers to navigation
  • Stationary and floating aids to navigation
  • Ability to select required chart layers/information
  • Chart information has no adverse effect on the radar picture
  • Display of information on selected chart objects in Info Panel
  • Selection of chart in-fills (coloured, monochrome) or contours (transparency)
  • Display of charts converted from ENC/S-57 to TX-97 format using Transas Chart Assistant utility
  • Display of charts overlay as objects contours
  • Safe depth contours display depending on data inserted by navigator
  • Chart scale automatically follows selected range

Navi-Radar 4000 Configuration

NR 4000 can be supplied in type-approved (IMO Radar) or non type-approved configuration depending on customers’ needs, and comprises the following IEC certified hardware:

  • Powerful maritime PC with wide range of interface connections
  • 19’’ or 23’’ TFT certified monitor depending on DWT
  • Type-approved Dedicated Radar keyboard or simplified controls
  • Scanner options 4, 10* or 25* kW with 22/40rpm
  • Antenna options 4, 6*, 7.5 or 9 ft

*NR 4000 Type Approved version


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