October 2010
The radars developed by JRC play an integral part in the life of seafarers. JRC has a wide range of radars available giving you complete flexibility on the bridge.
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| JMA-3300 | JMA-5100 | JMA-5200Mk2 | JMA-5300Mk2 | JMA-7100 | JMA-9100 | JMA-900B | |
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| IMO approved | n/a | n/a | V1 | V | V | V | V |
| Gross tonnage | n/a | n/a | 300 - 499 GT | 500 - 9999 GT | ≥ 10.000 GT | ||
| Version | Radar | Chart radar | |||||
| Type | All-in-one | Desktop (BB) | Desktop (BB) and standalone | ||||
| Antenna length | 2/3.9/4/6 ft | 2/4/6 ft | 4/6/7/9 ft | 6/7/9/122 ft | |||
| Frequency3 | X-band | X-band and S-band | |||||
| Output power | 4/6/10 kW | 6/10/25 kW | 10/25/30 kW | 25/30 kW | |||
| Max range | 48/72 NM | 96 NM | |||||
| High speed | No | No | Yes4 | Yes | Yes | Yes | Yes |
| Display |
10.4-inch bonded |
10.4-inch | 15-inch | 19-inch | 19-inch | 23-inch | 23-inch |
| Resolution | 640 by 480 | 1024 by 768 | 1280 by 1024 | 1600 by 1200 | |||
| Diameter (PPI) | n/a | n/a | 180 mm | 250 mm | 250 mm | 320 mm | 320 mm |
| TT5 |
10 MARPA ™ Standard |
10 MARPA Option |
30 TT Option |
30 or 100 TT Option |
100 TT Standard |
100 TT Standard |
100 TT Standard |
| AIS6 |
50 AIS Standard |
No |
130 AIS7 Option |
300 AIS7 Option |
300 AIS7 Standard |
300 AIS7 Standard |
300 AIS7 Standard |
| RMS | No | No | No | Yes | Yes | Yes | Yes |
| Constaview™ | Semi | No | Yes | Yes | Yes | Yes | Yes |
| TEF™ | No | No | Yes | Yes | Yes | Yes | Yes |
Visit the radar page and apply a filter to directly view the most suitable system for you.
IMO
The International Maritime Organization (IMO) is a specialized agency of the United Nations which is responsible for measures to improve the safety and security of international shipping and to prevent marine pollution from ships. The ownership and management of chain surrounding any ship can embrace many countries and ships spend their economic life moving between different jurisdictions, often far from the country of registry. There is, therefore, a need for international standards to regulate shipping - which can be adopted and accepted by all. The first maritime treaties date back to the 19th century. Later, the Titanic disaster of 1912 spawned the first international safety of life at sea - SOLAS - convention, still the most important treaty addressing the maritime safety.
Frequency
The marine radars are available in X-band and S-band frequencies. X-band operates at a frequency of approximately 9.4 GHz, while S-band operates at approximately 3 GHz. X-band offers greater resolution and detection of smaller targets, but is subject to interference from rain and seas. S-band radar has a longer range and less interference from rain and sea clutter, but has less sensitivity for small targets.
A ship will typically use her X-band unit near shore, due to its higher resolution and ability to detect smaller targets, but depend on S-band while at the “open seas”. It is recommended for large oceangoing vessels to install both X-band and S-band radars.
High speed
Typically, a cylindrically shaped array, horizontally fixed to a turning unit which for marine applications will rotate 360°. Radar scanners come in many configurations depending on the size, speed and areas in which the vessels sails. For example, the speed of rotation for vessels travelling at less than 30 knots would be 24-28 rotation per minute (rpm). For high-speed vessels, the rotation speed is doubled to 48 rpm. The physical size of the array unit can vary from 2 ft for leisure craft to 12 ft in respect of S-band radars fitted on large deep sea vessels.
Bonded technology
The tough glass bonded LCD is backlit by white LED's giving 900cd/m2 of brightness, making the radar image amazingly sharp. Bonding is a proceses whereby the air gap between the front glass and LCD module is filled with a special compound, significantly enhancing sunlight reflection, night vision and overheating as well as a reduction of possible condensation. This is a feature not previously found on this class of radar.
MARPA ™
The new radar has the ability to display 10 MARPA ™ tracking targets as standard. The high quality of the display provides outstanding target definition and discrimination. The (second generation) MARPA ™ continues JRC's successful MARPA ™ technology first found in the previous JMA-2300 radar series. Our engineers continued developing and improving the technology, until now, with MARPA ™, manual or automatic target tracking is even more reliable.
RMS
As times change and new technologies are introduced at an ever increasing pace, maritime communication and navigation equipment have also become more sophisticated. Monitoring all of this equipment causes a greater burden on the crew. JRCs' Remote Maintenance System (RMS) has the ability to cost-effectively monitor performance and functionality of onboard equipment while at sea, significantly reducing downtime and maintenance costs. Learn more
Constaview™
The second generation and patented Constaview™ is realized through the use of high-speed processors. All info gathered by the radar is processed within a few milliseconds before displayed, generating a smooth image rotation when sailing in Head-Up mode.
Semi-constaview™
Based on JRC's patented technology found in the bigger radars, the new JMA-3300 integrates Semi-Constaview™. This allows fast processing of targets, showing true trails in Head-Up mode, without interference of fixed targets, such as land or mass.
TEF™
Developed exclusively by JRC, Target Enhancement Function (TEF™), allows target enhancement relative to the target size. The smaller echoes are far more enlarged, giving a better on-screen separation and identification.
- 10 kW and 25 kW models are for IMO applications. 6 kW and high speed models are for non-IMO applications.
- 12 ft models only available in S-band frequency
- X band 9410MHz ± 30MHz, S-band 3050MHz ± 20MHz
- JMA-5200Mk2 high-speed models are for non-IMO applications
- TT = Target Tracking = ARPA/ATA
- AIS must be fitted on ships compliant to IMO
- Activated and sleeping
