NRS for Navy MR-231

- Wave length 3cm.
- Radius of antenna's rotation 3m; 2,5m; 1,6m.
- Dimension of LCD display 19".
- Transmitter power 10kW.
- Range scale up to 96 miles.

Electronic chart navigation information system MK-54IS can be supplied together with NRS.
Available in export modification.
Meet requirements of IMO, IEC, Russian maritime register of shipping and military standards of Russia.

The station ensures:
- operation in circular and sector modes;
- interscanning accumulation;
- scaling up of the selected image area with its separate display in the additional display field;
- image orientation to “HEAD-UP”, “NORTH”, “COURSE-UP”;
- modes RM and TM with off-centering within 2/3 image radius;
- automatic detection and audible alarm of targets in the guard zone;
- trails of targets past positions and true motion with adjustable time of its duration;
- autotracking of at least 50 targets with indication of their motion parameters and CPA with collision avoidance warning and safe passing trials maneuver (ARPA);
- image and graphic data stabilization relative to the ground and water;
- electronic chart overlap to the radar image;
- anchorage control;
- joint operation with wide range of interfaced equipment including friend-or-foe identification.
Interfacing with ship's bridge system.

Objects detection:
- maximum detection range with a probability of 0,8 at the antenna installation height 15m is not less than:
ship with effective echoing area = 5500sq.m — 17,3nm;
ship with effective echoing area = 300sq.m — 7,5nm;
medium sea buoy (without angle reflector) – effective echoing area = 10sq.m, h = 2,5m - 4,0nm;
- minimum detection range with a probability of 0,8 at the antenna installation height 7m doesn't exceed 20m.

The detection stability during rolling and pitching is ensured by beam width in the vertical plane 25°.
Bearing resolution with a probability 0,8°; 1,2°; 2°.
Range resolution with a probability 0,8 at most 25m.
Maximum permissible error of the electronic instruments of bearing measuring is – 0,3°.
Maximum permissible error of the electronic instruments of range measuring is — 10m / 0,5% of the scale.

Measurement of targets coordinates:
- VRM & EBL;
- electronic ruler;
- position mark.

Display of ship's generalized information:
- geographical coordinates;
- course, speed;
- depth under keel;
- zone time.