Humminbird Helix 12 CHIRP Mega SI Side Imaging G2N GPS Fishfinder & Transom Transducer
HELIX 12 CHIRP MEGA SI GPS G2N | HELIX 12 Series | 410380-1
The HELIX 12
CHIRP MEGA SI GPS G2N features a large 12.1" display with LED backlight,
CHIRP-ing MEGA Side Imaging, MEGA Down Imaging and 2D sonar. Includes GPS
chartplotting, built-in Bluetooth, Ethernet networking capabilities,
AutoChart Live with depth, vegetation and bottom hardness mapping, and unit
455kHz Side Imaging provides 800 ft of side to side coverage.
455kHz Down Imaging works to a depth of 400 feet.
1.2 MHz Side Imaging provides 250 feet of side to side coverage.
1.2 MHz Down Imaging works to a depth of 125 feet.
*Optional 50 kHz transducers available for extreme deepwater.
What's in the Box:
HELIX 12 CHIRP SI GPS G2N
XM 9 20 MSI T
360 Imaging - We have you surrounded. 360 Imaging
allows you to isolate your sweep, see 5 preset views or see all around you.
Side Imaging Sonar
Side Imaging Sonar -- Gain a 180° side to side
perspective on the world below the surface
Down Imaging Sonar
Down Imaging Sonar -- Get a fish-eye's view of
what's happening below your boat. Incredible images are created with
High-frequency sound waves.
SwitchFire Sonar -- Take command of how your
sonar returns appear with our Clear and Max Modes.
DualBeam Plus Sonar
Two beams combine for great detail and a wide
coverage area. Use the narrow beam for high-accuracy returns and bottom. Use the
wide beam when you want a larger search area
Contour XD is our built-in base map cartography
that covers 3,000 US lakes with depth contours and many other locations without
In darkness and fog, busy channels and
treacherous weather, situational awareness is the name of the game
Battle fish - not other boats. Humminbird's state
of the art AIS technology takes the risk and guesswork out of navigating
high-traffic channels or low-visibility seas.
GPS antenna built into the head unit
Up-gradable Software -- Access software updates
to enhance the performance of your Humminbird unit through our My Humminbird
section of the site
High Definition Display
Provides bright, crystal-clear images for easy
viewing in harsh sunlight
The Humminbird UniMap is a built-in map covering
the contiguous US coastline, inland lakes and rivers at 30 meters per pixel
Rig up the ultimate fishing system. Use our
5-Port Ethernet switch to link together multiple Humminbird head units or share
Browser Built-In -- Surf the web, monitor weather
and stay connected from the dock, offshore waters and in between.
Dual Card Slot
Dual SD Card Slot -- Use for advanced
cartography or to save your screenshots, sonar recordings and waypoints
NMEA 2000 ready - Boat performance, weather or
water conditions, make sense of it all with our networking solutions
i-Pilot Link is an integrated GPS Trolling System
available on select Minn Kota Ulterra, Terrova and PowerDrive V2 motors which
enable your motor and Humminbird to communicate.
Make a map where there is no map. Our patent
pending AutoChart Live allows you to create digital, detailed maps live and on
the water. You can also use it to enhance your existing charts.
SmartStrike takes you straight to the action by
showing you where the fish are biting at any given moment.
Get an at-a-glance view of fuel consumption,
engine performance and other vessel data.
Take wireless control of your Humminbird with our
new Bluetooth Remote and Dongle
It’s all in the details. Gain a 180 degree side-to-side perspective on the
world below the surface with remarkable Humminbird® Side Imaging®. In an
instant, the ultra-thin beam scans the area up to 240 feet to the left and right
of your boat location—for total coverage of up to 480 feet. The return image for
each slice is then added to the images taken immediately before and after to
build an incredible view of the lake bottom. You can then magnify the detail of
the image with the zoom feature or mark the GPS location of promising cover or
structure directly on the screen.
Side Imaging's high-frequency beams reveal structure, cover, and contour changes
with crystal clarity. The images are so real you might think it’s a camera, but
it’s not, so it doesn’t matter how murky the water is.
How to Read Side Imaging
Understanding a few simple concepts will help you grasp the detailed
images of Humminbird Side Imaging and make you a master of the lake or sea
bottom. Compare the screenshot and diagram to help visualize how Side
Imaging works. We’ve included several callouts to explain what you’re
seeing. Remember, Side Imaging is a history of what you’ve already passed
A- Boat Location
The position of your boat in relation to the on-screen image. The
on-screen image is a history of what you have passed over.
B- Water column
The dark blue area shows structure, cover and activity between the surface
and lake bottom.
C- Bottom Profile
Reveals depth and terrain directly beneath the path of your boat. D- Flat Terrain
Neutral shades of blue represent flatter terrain. E- Descending Terrain
Dark shades of blue represent descending terrain. F- Rising Terrain
Lighter shades of blue typically represent terrain rising from the bottom.
Sometimes, very hard bottoms appear as a whiter shade.
G- Fallen Log
The shortened horizontal shadows indicate cover very close to the bottom
of the lake. The angle of the shadow gives away the orientation of the
H- Standing Timber
Objects standing off the bottom directly below the boat will appear in the
water column. Structure to the left or right of the boat will appear as a
clearly defined bright shape with an adjacent, dark sonar "shadow." This
shadow is not caused by light; rather it's the lack of sonar return
because the object has already reflected the sonar energy. Generally, long
shadows indicate the object is tall, and small shadows indicate something
is short. It's important to note the shadow will often tell you more about
the object than the primary sonar reflection.
Visualizing Side Imaging
Reading the image produced by Humminbird Side Imaging is easy. Simply
visualize the screen folded in half down the middle (behind the boat).
Then, fold the image again at the lowest point of the water column. The
dark blue area provides a visual representation of the water column and
lake bottom directly below your boat.
Understanding the Beam
Humminbird Side Imaging Sonar uses a razor thin beam to take a “sonar
snapshot” of the area up to 240 ft. to the left and right of your
location. The return image for this slice is then added to the images
taken immediately before and after to build an incredibly detailed view of
the lake bottom.
Submerged bridge pilings on lake bottom.
Side Imaging reveals balls of bait that you can use when targeting
where fish are feeding.
See something interesting like the sunken sailboat shown here? Save its
exact GPS location as a waypoint on your Humminbird Imaging screen for easy
Enable the zoom mode to hone in on the tiniest details. Here, we’re able to
identify predators feeding on baitfish in the water column.
View multiple Humminbird sonar technologies at once for a complete picture.
Here, we’re able to see this wreck from several angles for optimal lure/bait
Enable range lines to judge the distance between your boat and underwater
objects. Here, we can easily see the main hull of this wreck is 27 feet from
our starboard side.
Use Contour Mode to remove the water column. Note how this submerged
railroad track now appears as though we’re looking straight down at it from
Adjust color palette, sensitivity and sharpness to match conditions,
enhance detail and target fish species. Changing color schemes helped shed new
light on this cover.
Look closely. You've never seen anything like new MEGA Imaging™. Delivering
nearly 3X the output of standard Side Imaging®, this groundbreaking technology
takes fishfinding into the megahertz frequency for the very first time. It's
indisputably the clearest, sharpest sonar image ever-brought to you by the
MEGA Imaging has you covered from multiple angles. Choose MEGA Side Imaging
for an incredible view to the left and right of your boat. Opt for MEGA Down
Imaging® for a crystal clear picture below your boat. Both technologies are
built into HELIX® 12, 10 and 9 CHIRP MEGA SI GPS G2N models.
higher frequency means greater clarity
Some of the best fishing happens in depths less than 125 ft. And that's where
the high frequency beam of MEGA Imaging shines brightest. In MEGA Side Imaging
mode, you'll have coverage out to 125 ft on either side of your boat. For depths
in excess of 125 ft and coverage out to 400 ft to either side of your boat, the
blended beam gives you traditional Humminbird Imaging clarity.
Zoom in to reveal a single fish and its shadow.
Note the individual stones surrounding this bridge.
A bicycle is seen here on the edge of a submerged swimming pool.
Observe the school of fish holding over this debris pile in zoom mode.
Dear Customer. We are proud to serve you with any assistance via
or Toll free number at 1-877-330-9758
for USA or (858) 720-0776 for International Customers.