01 Technologies to easily see what should be seen

Signal processing (EAV: Echo Average) is a technology that suppresses unnecessary echoes on the screen by utilizing image correlation techniques and FURUNO's unique determination technology, making it easier to distinguish echoes of other vessels from unwanted echoes.

When EAV is enabled, irregular echoes that appear on the screen, such as the reflection of waves on the sea surface, become thinner and only stable echoes remain with stronger colors.

EAV technology was first successfully commercialized by FURUNO and was continuously enhanced based on regular feedback from many users. This feedback has been particularly valuable when it comes to radars for fishing vessels as they require various EAV settings for specific sea situations and purposes. For example, it resulted in a new EAV mode for displaying fishing floats* so they can be more easily seen.

The Automatic Clutter Elimination function (ACE) is a technology that automatically adjusts and optimizes the radar image in any sea condition utilizing FURUNO's unique and advanced algorithm based on signal processing (EAV).

When the ACE function is activated, an image adjustment is automatically applied, such as Sea surface Echo Attenuation (SEA) or rain and snow reflection (RAIN) reduction, no matter the sea conditions. Furthermore, it is now possible for the ACE function to suppress false echoes that couldn't easily be erased with other conventional and manual image adjustments. *
Because it is also possible to independently adjust the ACE gain independently from the normal gain, it is even easier for the user to visualize the images.

No matter the sea conditions, ACE continuously delivers optimal video settings so the user is freed from continuously adjusting the image while focusing on watching the surroundings.

RezBoost™ is an advanced technology that significantly increases the resolution of radar targets thanks to advanced signal processing.
When using RezBoost™, the apparent beam width becomes sharper, even if using the same radar sensor, and the resolution improves dramatically.

Quickly grasp the situation by identifying the vessels surrounding own ship, as well as the vessels close to the quayside, even in poor visibility conditions, such as nighttime, thanks to improved heading accuracy. This technology is also instrumental in preventing accidents and any misrecognition by helping to visualize the situation inside and outside the marina.

It was in 1986 that, for the first time, a Furuno-made tool specialized in seabird detection was specifically designed for professional fishermen. The technology was based on the use of high power radio waves to see up to 20 NM*¹ (a distance that even binoculars cannot reach) and on the knowledge that fish can be found under flocks of birds.

In the past, it was commonly believed and accepted that birds do not appear on the Radar screen. Furuno discovered echoes hinting to the presence of birds while using an S-band radar installed on a merchant ship. This led to Furuno developing S-band Radars for Fishing vessels to aid in locating seabirds. This "Seabird detection" technology, revealing the presence of distant seabirds, is now indispensable and widely used as a tool for fishing both in the commercial and recreational markets.

By leveraging the knowledge acquired with the development of products for the fishing market, an automatic gain adjustment optimized for seabird detection, "Bird Mode", was developed and integrated into X-Band Radars for the recreational market.

Recreational X-band Radars are perfect for both short and medium range bird detection*² and provide new ways for users who enjoy fishing for migratory fish.

Depending on their flying style and their altitude, it is possible to target and track a single bird on the radar screen. Also, by combining this data with the echo trail function, the bird's trajectory can be estimated.