Koden Display Unit MRD-105P for Marine Radar MDC-2910P/2920P

The Koden Display Unit MRD-105P is a crucial component of the Koden Marine Radar MDC-2910P/2920P systems. It’s designed to provide a clear and comprehensive radar image for safe navigation, particularly for vessels up to 10,000 gross tons, as it complies with IMO (International Maritime Organization) regulations and SOLAS (Safety of Life at Sea) carriage requirements.

Technical Specification

Koden Display Unit MRD-105P (and Processor Unit MRM-105P for BB type):

Display Size/Type: 19-inch Color TFT LCD
Effective Display Diameter: 278 mm
Display Resolution: 1280 x 1024 pixels (SXGA)
Off-centering: Max. 72%
Echo Area: 1 type (Inside of effective diameter)
Presentation Modes: Head-up, North-up, Course-up
Video Level: 7 levels
Distance Unit (VRM, PI): NM (Nautical Miles), KM (Kilometers)
Water Protection: IPX6
Operating Temperature: -25°C to +55°C
Dimensions (Display Unit): 450mm (W) x 276.6mm (H) x 158.3mm (D)
Weight (Display Unit): Approximately 15 kg
Power Supply: 21.6 to 41.6 VDC
Connections:
- NMEA0183 Input/output x 3
- AIS signal input
- Alarm out
- VDR output
- Radar signal output (For external monitor)
- Radar signal input/output (For Interswitch)

Koden Marine Radar MDC-2910P / MDC-2920P Systems:

Antenna-Scanner Unit:

Feature	MDC-2910P	MDC-2920P
Output Power (Peak)	12 kW	25 kW
Antenna Type	Open Array	Open Array
Antenna Length Options	4 feet, 6 feet, 9 feet	4 feet, 6 feet, 9 feet
Output Frequency	9410 MHz ± 30MHz	9410 MHz ± 30MHz
Horizontal Beam Width	4 feet: 1.8° / 6 feet: 1.2° / 9 feet: 0.8°	4 feet: 1.8° / 6 feet: 1.2° / 9 feet: 0.8°
Vertical Beam Width	4, 6 feet: 22° / 9 feet: 25°	4, 6 feet: 22° / 9 feet: 25°
Rotation	24 rpm (48 rpm also available, requires 24 VDC or more)	24 rpm (48 rpm also available, requires 24 VDC or more)
IF Center Frequency	60 MHz	60 MHz
Range Accuracy	7 meters or 1% of the range scale selected, whichever is the greater	7 meters or 1% of the range scale selected, whichever is the greater
Minimum Detecting Distance	Within 40 m	Within 40 m
Range Resolution	Within 40 m	Within 40 m
Warm-up Time	120 seconds (2 minutes)	180 seconds (3 minutes)
Pulse Width	0.08 μs, 0.2 μs, 0.3 μs, 0.6 μs, 1.2 μs	0.08 μs, 0.15 μs, 0.3 μs, 0.6 μs, 1.2 μs
Water Protection	IPX6	IPX6
Operating Temperature	-25°C to +55°C	-25°C to +55°C

System Features:

Maximum Range:
- MDC-2910P: 72 NM
- MDC-2920P: 96 NM
Range Scales:
- 0.125, 0.25, 0.5, 0.75, 1.5, 3, 6, 12, 24, 48 NM (up to 72 NM for MDC-2910P, up to 96 NM for MDC-2920P)
Range Rings Interval: Automatically set based on range scale (e.g., 0.0625, 0.125, 0.25, 0.5, 1, 2, 4, 8, 12, 16)
Functions:
- CFAR (Clutter Rejection)
- Interference Rejection (IR)
- Enhance (Target expansion)
- Process (Averaging)
- VRM (Variable Range Marker)
- EBL (Electronic Bearing Line)
- Parallel Index Lines (PI)
- ERBL (Electronic Range and Bearing Line)
- Cursor position (Lat/Lon)
- Bearing (true/relative)
- Trail (true/relative)
- Own ship past track
- MAP (Event mark, etc.)
- RGB output
AIS Interface: Built-in, displays up to 254 targets (IMO requirements: 150 targets)
TT (ARPA): Built-in, tracks up to 60 targets (IMO requirements: 30 targets), with selectable auto or manual acquisition. Full ARPA functions including trial maneuver.
Input Data Format (NMEA0183): BWC, DBT, DPT, DTM, GGA, GLC, GLL, GNS, HDG, HDT, HDM, MTW, RMA, RMB, RMC, RTE, THS, VBW, VDR, VHW, VTG, WPL, XTE, ZDA
Output Data Format (NMEA0183): RSD, OSD, TLB, TTD, TTM
Power Consumption (at 24VDC): Varies by model and antenna length, but generally within a range appropriate for marine use.