Humminbird 409640-1 HELIX 5 SI Fish Finder with Side-Imaging and GPS
- Precision Internal GPS Chartplotting with built-in UniMap cartography
- Maximize your angling experience with the Humminbird HELIX 5 SI GPS fishfinder GPS system
- Micro SD card slot for optional maps or for saving waypoints
The Humminbird 409640-1 HELIX 5 SI/GPS Combo features a brilliant 800H x 480V, 5″ 256 color display with backlight. Side Imaging/Down Imaging and Dual Beam Plus sonar with 4000 watts PTP power output, Precision Internal GPS Chartplotting with built-in UniMap cartography with a micro SD card slot for optional maps or for saving waypoints. Maximize your angling experience with the Humminbird HELIX 5 SI GPS fishfinder GPS system.
Marine Gps Chartplotter And Fishfinder
FamilyMan
January 10, 2016Slow, screen very hard to see. Big disappointment.,
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|DLO403
January 10, 2016Having said that for a $500 unit I am very pleased. The screen is still big enough to see …,
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|weltwind
January 10, 2016side imaging is much better than traditional sonar,
Customer Video Review Length:: 0:49 Mins
This is my first side imaging sonar. Initially, I thought that the SI was not working but after help from Humminbird found out that it was due to technology limitations that I had not been aware of. For best imaging, boat speed should be around 3-4 mph, with calm water, and minimal side-to-side rocking. The boat should be moving approximately straight, and the chart speed should be matched to the boat speed. Such conditions are not present every day in the Gulf but when they are, the imaging works and is far more informative than traditional sonar. Included below are a video of my marina’s channel, and an image from an ‘artificial reef’, an area with concrete rubble. The recordings include the GPS coordinates, and allow creating waypoints while reviewing the scans at home.
BTW, per my discussion with Humminbird support, the processors used in the Helix 5 SI and 7 SI are the same, and other than the size of the display, there are no substantive differences between the two units.
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