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Features a 15-inch multi-color, high-resolution display with a logarithmic amplifier receiver.
Offers 16-level yellow/green display with day/night palette, dual EBLs/VRMs, and multiple presentation modes.
Includes 10-target EPA, programmable function keys, optional Auto Plotter ARP-17, and target alarm zones.
Utilizes advanced video processing for improved noise rejection and automatic clutter suppression.
Meets international standards like IMO Resolutions MSC.64 (67) Annex 4 and IEC 60936-1.
Optional Video Plotter RP-17 and high-speed scanner (42 rpm) are available.
Presents true or relative echo trails for intuitive situation recognition and collision course identification.
Supports Electronic Plotting Aid (EPA) and optional Automatic Tracking Aid (ATA) for target management.
Optional plotter for radar maps, navigation events, and digital chart display.
Details antenna types (XN12AF, XN20AF, XN24AF) and transceiver output powers (6 kW, 12 kW, 25 kW).
Describes the 15-inch CRT display, pixel resolution, echo color, and presentation modes.
Covers input/output interfaces, environmental operating temperatures, and power supply requirements.
Features a 15-inch multi-color, high-resolution display with a logarithmic amplifier receiver.
Offers 16-level yellow/green display with day/night palette, dual EBLs/VRMs, and multiple presentation modes.
Includes 10-target EPA, programmable function keys, optional Auto Plotter ARP-17, and target alarm zones.
Utilizes advanced video processing for improved noise rejection and automatic clutter suppression.
Meets international standards like IMO Resolutions MSC.64 (67) Annex 4 and IEC 60936-1.
Optional Video Plotter RP-17 and high-speed scanner (42 rpm) are available.
Presents true or relative echo trails for intuitive situation recognition and collision course identification.
Supports Electronic Plotting Aid (EPA) and optional Automatic Tracking Aid (ATA) for target management.
Optional plotter for radar maps, navigation events, and digital chart display.
Details antenna types (XN12AF, XN20AF, XN24AF) and transceiver output powers (6 kW, 12 kW, 25 kW).
Describes the 15-inch CRT display, pixel resolution, echo color, and presentation modes.
Covers input/output interfaces, environmental operating temperatures, and power supply requirements.
The FURUNO FR-1505/1510/1525 MARK-3 is a high-performance, X-band radar system designed for shipborne use, offering advanced video processing techniques to enhance detection capabilities across both short and long ranges. This radar system is built upon Furuno's long-established tradition of high performance and reliability, meeting exacting international and national performance standards for vessels requiring a radar with a 180 mm display diameter.
At its core, the FR-1505/1510/1525 MARK-3 functions as a sophisticated radar, transmitting and receiving X-band radio waves to detect objects on the water's surface and in the air. The system processes these echoes to generate a visual representation of the surrounding environment on a 15-inch multi-color, high-resolution display. Its primary function is to aid navigation by providing real-time information about other vessels, landmasses, and potential hazards, thereby enhancing situational awareness and collision avoidance.
The radar incorporates a logarithmic amplifier receiver, which is crucial for handling a wide dynamic range of echo signals, from very weak to very strong, without saturation. This ensures that both distant, faint targets and close, strong targets are displayed clearly. The system offers a 16-level yellow or green display with day and night color palettes, allowing operators to select the most comfortable and effective viewing mode for varying light conditions.
A key functional aspect is its ability to present radar information in multiple modes: Head-Up, Course-Up, North-Up, Head-Up True Bearing, and True Motion. These modes cater to different navigational preferences and operational requirements, providing flexibility in how the radar picture is oriented relative to the vessel's heading or true north. True or relative echo trails can be displayed, offering visual cues about target movement. True echo trails, when combined with ship's heading and speed data, allow for intuitive recognition of the surrounding situation without smearing stationary targets like land. Relative echo trails are particularly useful for identifying targets on a collision course. The length of these trails can be selected from 15 seconds to 30 minutes, or set to continuous, and are displayed in monotone or multilevel shading.
The radar also features two target alarm zones, which can be set in any sector at a desired range. These zones provide visual and audible warnings when a target enters the defined area or when a preset CPA/TCPA (Closest Point of Approach/Time to Closest Point of Approach) zone is breached, significantly contributing to collision avoidance.
For target tracking and plotting, the system includes a 10-target Electronic Plotting Aid (EPA) as a standard feature. This EPA allows for manual plotting of targets with auto follow-up and displays true or relative vectors with specified lengths. Target data, including speed and heading, can be read out for true vectors. For SOLAS Convention ships, an optional Auto Plotter ARP-17 (ATA) is available, which automatically tracks up to 20 targets and generates collision alarms. Additionally, an optional Video Plotter RP-17 can be integrated, providing radar mapping capabilities and storage of navigation events.
The FR-1505/1510/1525 MARK-3 is designed for intuitive operation, featuring dual EBLs (Electronic Bearing Lines) and VRMs (Variable Range Markers) with a floating origin. The No.1 EBL can be off-centered and includes a range marker, enhancing precision in target localization. A trackball is provided for direct range/bearing readout, offering a user-friendly interface for interacting with the radar display.
Two user-programmable function keys allow for one-touch optimized radar settings, enabling operators to quickly adapt the radar to changing environmental conditions or operational needs. This customization streamlines common tasks and improves operational efficiency.
Advanced video processing techniques are employed to suppress clutter and reject noise, ensuring a clearer radar picture. The system automatically distinguishes target trails from real targets using different color tones, facilitating accurate plotting. Features like automatic tuning, A/C sea/rain clutter suppression, interference rejection, and second trace echo suppression further enhance the radar's performance in various sea states and weather conditions.
Echo stretch is available to make small or distant targets more visible. The heading line can be turned off for a clearer view of the radar picture, with a self-returning function for convenience. Parallel index lines are also provided, which are useful for maintaining a safe distance from hazards or for parallel course navigation. The off-centering capability, allowing up to 75% of the range scale, provides an expanded view of a specific area of interest.
In the event of an accidental power-off, the quick restart feature ensures minimal downtime, allowing the radar to resume transmission rapidly. The system also supports Nav data display, which requires appropriate inputs, providing additional navigational information directly on the radar screen.
While the manual primarily focuses on operational features, several aspects imply ease of maintenance and reliability. The robust construction, designed to meet IEC 60945 general requirements for environmental conditions, suggests durability and resilience in harsh marine environments. The modular design, with separate antenna, transceiver, and display units, simplifies troubleshooting and component replacement, should it become necessary.
The availability of standard spare parts and installation materials, as listed in the equipment list, indicates that components are readily available for servicing. The option for different antenna types and rotation speeds (24 rpm standard, 42 rpm optional) allows for tailored installations, potentially reducing wear and tear by selecting the most appropriate configuration for a vessel's specific operational profile.
The system's compliance with IMO Resolutions MSC. 64 (67) Annex 4, IEC 60936-1 Shipborne radar standard, and IEC 60872-2 ATA (with optional ARP-17) ensures adherence to international safety and performance standards, which often include provisions for reliability and maintainability. The use of a ferrite circulator with a diode limiter in the duplexer and a microwave integrated circuit (MIC) for the mixer and local oscillator points to the use of reliable, modern electronic components designed for long-term performance.
The clear distinction of target trails by different color tones, along with accurate plotting, contributes to the overall reliability of the system by providing unambiguous information, which in turn can prevent incidents that might lead to system damage or increased maintenance needs. The quick restart function, while an operational feature, also contributes to system resilience, ensuring that critical navigation aids are quickly restored after an interruption.
General| Antenna Type | Open Array |
|---|---|
| Rotation Speed | 24 RPM |
| IP Rating (antenna unit) | IP56 |
| Type | Marine Radar |
| Display Size | 10.4 inches |
| Range | 0.125 to 48 nm |
| Antenna Length | 1.2 m (4 ft) |
| Frequency | 9410 MHz ±30 MHz |
