Side Imaging Frequencies And Coverage - Humminbird HELIX 5 SI GPS Operation Manual

The main benefit of Side Imaging sonar to anglers is that it provides an overall survey of a large
area of water. This gives you a better understanding of the bottom topography and how structure
is oriented for more efficient fishing.
Saltwater anglers pick up precise details of popular fishing structure like wrecks, reefs, humps
and drop-offs, as well as being able to spot bait balls in open water. Freshwater anglers can see
fish-attracting structure such as timber, stumps, rocks, and creek beds.

Side Imaging Frequencies and Coverage

Side Imaging sonar uses two very precise sonar beams that are directed to either side of the
boat. The beams "illuminate" the bottom contour, structure, and fish, and the results are displayed
in a "picture-like" image on the screen.
• Frequencies: The side beams operate at a frequency of 455 kHz. Your Side Imaging
transducer also provides DualBeam PLUS sonar coverage at 200/83 kHz.
• Side Imaging Beams are extremely narrow from front to back, and provide "thin slices"
of the bottom for high resolution imaging.
• Side Imaging Range: 240 feet to each side, with a total side coverage of 480 feet, with
a depth limitation of 150 feet, depending on the contour of the bottom and when the
side beam frequency selection is set to 455 kHz.
455 kHz provides maximum coverage with 180° total beam width
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Side Imaging sonar echoes are
first displayed at the top of the
screen, and historical data
scrolls down the display as
new information is received.
What's on the Side Imaging Display