4/19/2023 0 Comments Humminbird helix 12One of the main navigational features offered by Humminbird Helix 12 is definitely the AutoChart Live function. You can also convert your trails into routes in order to add waypoints, re-trace, and more. The device can store up to 2,500 waypoints, 47 routes (with up to 50 waypoints), and 50 trails (with up to 20,000 points). This package covers more than 3,000 lakes in the US, including contour lines and other important info like channels, drops, markers, lights, and major interstates and roads. Humminbird Helix 12 features a built-in GPS/GLONASS module as well as preloaded ContourXD maps. The optimal scanning speed for the unit is between 3 and 7 mph, but it should be able to maintain bottom readings at 35 mph max. HELIX 12 also comes with all the traditional sonar features, including Fish ID+, BottomLock, Real Time Sonar, Sonar Recording/Rewind, SwitchFire, and numerous alarms. The beams used for this type of imaging are fan-shaped, thin, and angled at 86° for 455 kHz and at 55 ° for 800 kHz. When it comes to Side Imaging, the device can hit both 455 and 800 kHz with the provided transducer. However, utilizing the unit’s CHIRP capabilities will result in better target definition/separation as well as less clutter on your screen. The main unit can also cover 50 kHz, but you have to upgrade the transducer in order to hit that level. Since we are talking about a dual-frequency ( DualBeam ) sonar, you can run both beams simultaneously and observe the results in the Dual Screen mode. If you opt to use standard sonar scanning instead of CHIRP, the provided transducer will utilize conical beams at 60° for 83 kHz and 20° at 200 kHz. Its Di and Si ranges are around 150 and 240ft, respectively. This will also allow you to scan up to 3,500ft instead of 1,500ft, which is the limit of the provided model. ![]() This transducer is capable of covering Medium (75-155 kHz) and High CHIRP (130-250 kHz), so you have to purchase a more powerful upgrade if you wish to cover Low CHIRP (28-75 kHz) as well. The provided transducer model is XHS 9 HD SI 180 T that comes with a temperature sensor, transom mount, and 20” of cable. One of the most important things to point out when it comes to this unit is the fact that it uses CHIRP only for 2D scanning and NOT for Down and Side Imaging.
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