Google+

Can You Trust Your Fishfinder?

 

Can You Trust Your Fishfinder?

Before Lowrance invented and sold the first recreational sonar product for fishermen in 1957, many anglers focused their time on the water searching for gamefish near or around the shoreline. The reason is simple: When you can see fish-holding structure along the bank of a lake, you are more confident in locating key fish-holding areas. The Lowrance Fish-Lo-K-Tor – also known as the “The Little Green Box” – changed all that. Using this portable, battery-operated device, fishermen gained the confidence they needed to move off the shoreline with a whirling dial of red lights that could define depth changes, and mark underwater structure as well as gamefish. While this first fishfinder was simple in design – requiring a considerable amount of training to use effectively – it changed the way we fished, and it definitely helped put fish in the boat. Today, when a marine electronics company announces a “ground breaking” fishfinder that delivers a meaningful benefit, anglers take notice. And that’s where our story begins.

In 2014 Garmin launched DownVü, a feature that gave anglers a photo-like image of what was directly beneath their boat. Rocks look like rocks, trees look like trees and fish look like fish. It represented a game-changing sonar technology. The problem – DownVü technology isn’t a Garmin original design. It was a duplicate design of Lowrance’s DownScan Imaging™ – the same technology offering the same features and benefits. DownScan Imaging had been designed, patented and brought to market by Lowrance’s parent company Navico years before. Rather than develop their own solution or license the Navico technology – as other marine electronics manufacturers had done – Garmin took a shortcut that resulted in a 2015 ruling by the International Trade Commission (ITC) stating that Garmin’s DownVü transducer design infringes upon Navico patents, and those DownVü products could no longer be imported into the United States.

In an effort to work around the ITC ruling, Garmin modified the design of the DownVü transducer by tilting the angle of the down-facing element. An ongoing enforcement action is underway, relating to Garmin’s attempt to import the tilted-element transducer without seeking ITC approval.

The latest workaround attempt by Garmin is the recently introduced ClearVü scanning solution, which is a radically different design. Garmin’s new design no longer infringes the patents like before, but that is because ClearVü features no down-facing sensor. So to be clear, in the U.S., Garmin ClearVü is sold without any down-facing transducer element. For anglers depending on their fishfinder to identify fish and structure beneath the boat, this new design is a cause for concern.

ClearVü compiles data from the side-scanning elements in the transducer, then uses software to try to fill in the missing information below your boat. If you pass directly over a fish, your “down-scanning” ClearVü fishfinder may not see it, because it could be out of range of the side-scanning beams. In an attempt to produce downward data from side-scanning beams, Garmin has managed to reduce clarity and distort the appearance of targets across the board.

The idea of creating a down-scan view by using only the side-scan sonar signals is not new. Other marine electronics manufacturers tried this years ago, until they decided the best solution for anglers is to offer true DownScan Imaging, which is why all other marine electronics manufacturers, such as Humminbird and Raymarine, now license the true Navico DownScan Imaging technology for use on their fishfinders.

Since 1957, sonar technology has changed the way we fish with meaningful benefits that gave us the confidence to move off the shoreline to find and catch more and bigger fish. When those fishfinding benefits fall short of what we should expect, it’s important to take note, so you can make the most of your time on the water. To learn how true DownScan Imaging continues to set the standard for the best possible image-scanning views beneath your boat, visit http://www.lowrance.com/true-downscan.

Original Source:  Sportsmans Lifestyle.com

Entertainment

Surreal Fantasy Features Liam Neeson as Voice of Anthropomorphic Tree

  A Monster Calls DVD Review by Kam Williams Surreal Fantasy Features Liam Neeson as Voice of Anthropomorphic Tree Conor O'Malley (Lewis MacDougall) is understandably miserable. First of all, the 12 year-old divorced mom (Felicity Jones) is terminally ill. Second, they're both estranged from his father (Toby Kebbell) who has long since … [Read More its Good for You...]

Art

The Day After the Day Of

  The Day After the Day Of by Paul Ilechko   The sky sheds its tears. This morning is the morning of the day after. The day of mourning, the day after the day of.  I beseech the sky to shed tears in order to wash away the tears on my face.   This is the first day of the time after. This is the beginning of a new time, the … [Read More its Good for You...]

Books

The President’s Kitchen Cabinet

  The President's Kitchen Cabinet The Story of the African-Americans Who Have Fed Our First Families, from the Washingtons to the Obamas by Adrian Miller University of North Carolina Press Hardcover, $30.00 292 pages, Illustrated ISBN: 978-1-4696-3253-7 Book Review by Kam Williams “[This opus] vividly tells the stories of the … [Read More its Good for You...]

Real Estate

Castles in America

  Castles in America by Amy Lignor   Robin Leach and his “Lifestyles of the Rich and Famous” taught us all long ago that we absolutely love to sit and view ridiculous luxury (usually owned by people who inherited all of it and didn’t work a day in their lives). See that? We had to complain about something as we were beguiled by the amount … [Read More its Good for You...]

Lifestyle

Architecture in America That Would Make Frank Lloyd Wright Proud

  Architecture in America That Would Make Frank Lloyd Wright Proud by Amy Lignor There is a brand new headline when it comes to an innovative new building; a building that the creator hopes to construct in America. It is a design that looks stunning on paper, however, it is also a design that is ‘far right’ of, well…even Wright’s own … [Read More its Good for You...]

Outdoors

Yamaha Marine Receives 2017 Silver Star of Excellence

  Yamaha Marine Receives 2017 Silver Star of Excellence From American Technical Education Association and the National Technical Honor Society® for Contributions to Technical Education RECOGNIZED FOR CONTRIBUTIONS TO THE MOTORCYCLE AND MARINE SERVICE PROGRAM AT THE TENNESSEE COLLEGE OF APPLIED TECHNOLOGY (TCAT) CHATTANOOGA Yamaha Marine … [Read More its Good for You...]

Sports

Gonzaga Celebrates the Final Four

  Gonzaga Celebrates the Final Four by Amy Lignor   “Beauty & the Beast” may be raking in the dough at movie theatres everywhere, but it is the Princess Cinderella that appears at the core of the NCAA headlines. We all have our “Cinderella Teams.” Heck, they even made a movie after the Hoosiers who once set the world on fire. But as this … [Read More its Good for You...]

Business

Made in the U.S.A. Should be the #1 Path for Businesses

  Made in the U.S.A. Should be the #1 Path for Businesses by Amy Lignor   The popular show called “Shark Tank” offers investors that back up small businesses – businesses that then turn around and make millions and are able to hire more and more American workers each year, still mentions something that breaks the heart in almost every … [Read More its Good for You...]

Travel

Where to Vacation? Go Big or Stay Home!

  Where to Vacation? Go Big or Stay Home! by Amy Lignor We speak about luxury vacations, budget vacations, vacations that are fun for the kids, and many more areas of travel at this time of year. But there is also a category that many do not touch upon because they “assume” it is far too difficult for those on a budget to be able to enjoy … [Read More its Good for You...]

Green Living

Creating the Perfect Vegetable Garden

  Creating the Perfect Vegetable Garden by Amy Lignor   Many are still dealing with that wintery mix Mother Nature just loves to toss down from the sky this time of year. Yet, that gardener living inside the soul – the one just dreaming of the sunny skies and lazy rainy days that are must-haves in order to grow the best vegetables possible … [Read More its Good For You...]

Health

Making Your Health “Resolute”

  Making Your Health “Resolute” by Amy Lignor   It is time for those New Year’s Resolutions to be made. We all know the ones most likely being placed on lists everywhere: stop smoking and lose weight. Why? Because these have always been the top two when it comes to goals, so that the next time the ball drops you feel amazing that the … [Read More its Good for You...]