Display showing Fish Arches

M5565_ManE_531192-1_A.qxd 5/4/2003 9:38 PM Page 14

Bottom Contour Profile with RTS® Window.

Temp/Speed Accessory is optional.

The Sensitivity can be adjusted to display

bottom contour and thermoclines.

Transducer Cone and Fish Arches

As the boat moves, the Matrix unit charts the changes in depth on the display to create a profile of the Bottom Contour. The default presentation highlights the bottom profile with a Structure ID® feature and gray tones. From the appearance of the gray tones in the bottom contour, the type of bottom can be determined. A Hard Bottom such as compacted sediment or flat rock appears as a thinner dark line across the display. A Soft Bottom such as mud or sand appears as a thicker line that contains a transition from darker to lighter grays. Rocky Bottoms have a broken, random appearance. In shallower water, a Second Sonar Return may appear as a bottom contour below the main bottom at twice the depth.

The second return occurs when the sonar signal bounces between the bottom and the surface of the water and back again. Experienced anglers use the appearance of the second return to determine bottom hardness. Hard bottoms will show a strong second return, while soft bottoms will show a very weak one or none at all. The Matrix unit is capable of revealing layers of water with different temperatures called thermoclines. Thermoclines appear at different depths and different times of the year. A thermocline typically appears as a continuous band of many gray levels moving across the display at the same depth.

Due to the transducer beam angle, the distance to a fish decreases as the fish moves into the beam, and then increases as it moves out again, creating a Fish Arch when this distance change is graphed on the display. Boat speed, chart speed, and the position of the fish within the sonar beam greatly affect the shape of the arch. For optimum fish arching, it is important to mount the transducer so that it is pointing straight down.

Temp/Speed Accessory is optional.

83 kHz Sonar Zoom View shown

with Structure ID® on.

The Matrix unit has an advanced Selective Fish ID+TM option that analyzes the sonar return to determine if the sonar return may contain fish (see Sonar Settings - Main Menu Sonar Tab). When a target is detected, a Fish ID+TM symbol appears on the display with the depth associated with it. The size of the symbol indicates the intensity of the sonar return. Targets detected in the narrow beam directly under the boat appear as Shaded Fish Symbols. Targets detected in the wide beam around the boat appear as Hollow Fish Symbols. The Matrix unit will clearly show schools of Bait Fish as "clouds" of different shapes and sizes, depending on the number of fish and boat speed.

Sonar Zoom View increases the display resolution to separate sonar returns that are very close together, such as those caused by fish suspended close to the bottom or within structure. In Zoom View, the display is split to show a full range view on the right and the zoomed view on the left. As the depth changes, the zoomed view updates automatically to display a magnified image of the bottom. The Zoom Preview Box shows where the zoomed view is in relation to the full range view. The Zoom Level, or magnification, is displayed in the lower left corner and can be changed to suit conditions (see Sonar Settings - X-PressTMMenu). Upper and Lower Zoom Depth Range numbers indicate the depth of the water which is being viewed.

65, 55 specifications

Humminbird is renowned for its innovative fish finders, and the Humminbird 55 and 65 models stand out as excellent choices for both novice and experienced anglers. Designed with user-friendly features and advanced technologies, these models are engineered to enhance fishing experiences on the water.

The Humminbird 55 boasts a 5-inch grayscale display, providing clear visibility in various lighting conditions. It features Humminbird's exclusive DualBeam PLUS sonar technology, which utilizes two beams to provide both wide coverage and detailed bottom mapping. This technology allows users to see not only fish but also underwater structures, making it easier to identify potential hotspots.

Another standout feature of the 55 is its Fish ID technology, which simplifies the interpretation of sonar returns by automatically identifying fish sizes and depths. This user-friendly addition is especially helpful for those new to fish finding, as it removes some of the complexities associated with traditional sonar readings.

In contrast, the Humminbird 65 offers a larger 6.5-inch display, providing even greater clarity and detail. This model also includes DualBeam PLUS sonar technology but enhances it with the addition of a built-in GPS. This GPS enables anglers to mark waypoints, navigate back to favorite fishing spots, and track their routes, adding a layer of convenience during excursions on the water.

Both models come equipped with advanced fish tracking capabilities, offering features like scrollable history and a customizable sensitivity setting, allowing users to tailor their experience to their unique fishing style. The automatic sonar sensitivity adjustment ensures that anglers receive optimal performance in varying water conditions, whether in freshwater lakes or coastal waters.

Durability is another hallmark of the Humminbird 55 and 65 series. Both units are built to withstand the rigors of marine environments, featuring weather-resistant housings that protect them from splashes and moisture. Easy-to-use controls and a straightforward interface make navigating through menus and settings hassle-free.

Overall, the Humminbird 55 and 65 models represent a blend of innovative technology, practical features, and robust design. These fish finders enhance anglers' ability to locate and catch fish, making them worthwhile investments for anyone passionate about fishing. With their user-friendly designs and advanced sonar capabilities, the Humminbird 55 and 65 models elevate the fishing experience, catering to a robust range of angler needs.