JRC's second generation and patented Constaview™
The second generation and patented Constaview™ is realized through the use of three high-speed processors (in-house Tornado™ technology). All information gathered by the radar is fully processed within a few milliseconds before being displayed.
A smooth image rotation is generated when sailing in Head-up mode. When changing to North-up, the new radar image is displayed without any delay caused by the scanner rotation
Target Enhancement Function (TEF
Developed exclusively by JRC, TEF™, allows target enhancement relative to the target size. The smaller echoes are far more enlarged than bigger echoes, giving a better on-screen separation and identification.
The advantages of the JRC Solid State S-band radar.
JRC's new IMO approved JMA-9172-SA, S-band Solid State radar, represents a new generation of marine radars, utilizing advanced signal processing technology to display targets with high accuracy while using a stabilized high-power solid state transceiver. The advanced radar functions and operation are based on JRC's successful JMA-9100 radar series.
What is the difference between S-band and X-band?
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.
Radars for conventional and high speed applications.
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.