Humminbird - Fish Finders and GPS
Humminbird - Fish Finders and GPS
Humminbird - Fish Finders and GPS
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Side Imaging Technology: How it works<br />
Side Imaging sonar uses two very precise sonar beams that are directed to<br />
either side of the boat <strong>and</strong> “illuminate” the bottom contour, structure, <strong>and</strong><br />
fish, <strong>and</strong> display results in a “picture-like” image.<br />
• Side beams are extremely narrow from front to back, <strong>and</strong> provide<br />
“thin slices” of the bottom for high resolution imaging.<br />
• Side beams can search an area that is 720 feet wide (360 to each<br />
side), with a typical depth performance of 150 feet when the side<br />
beam frequency selection is set for 455 kHz..<br />
The main benefit of Side Imaging sonar to anglers is that it provides an<br />
overall survey of a large area of water. This gives you a better underst<strong>and</strong>ing<br />
of the bottom topography <strong>and</strong> how structure is oriented for more efficient<br />
fishing. Saltwater anglers pick up precise details of popular fishing structure<br />
like wrecks, reefs, humps <strong>and</strong> drop-offs, as well as being able to spot bait<br />
balls in open water. Freshwater anglers can see fish-attracting structure<br />
such as timber, stumps, rocks <strong>and</strong> creek beds.<br />
Side Imaging Representation<br />
Creek Bed Rock Bait Ball <strong>Fish</strong> Tree Stump Bank<br />
Water Column<br />
Side Imaging: On the water Interpretation<br />
Use the following side imaging examples to help you interpret the side<br />
imaging display.<br />
Imaging Tips<br />
Boat speed: Side imaging is best performed at boat speeds between 2 to 6<br />
mph. If the boat is stationary, the same information is displayed over <strong>and</strong><br />
over. If the boat is moving very quickly, there will be gaps between the strips<br />
of information. The best boat speed to use will depend on the side range<br />
selected. Slower speeds are good for longer ranges, while faster speeds can<br />
be used at shorter ranges.<br />
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