We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Portable Fish Finder?

Malcolm Tatum
By
Updated May 16, 2024
Our promise to you
EasyTechJunkie is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At EasyTechJunkie, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Portable fish finders are simple tracking devices used by professional and amateur fishers to locate schools of fish. Similar in function to larger fishing finding equipment that is permanently mounted in commercial fishing vessels, the portable device can easily be installed in any type of boat and disengaged when the fishing expedition is completed. Sometimes referred to as a fishing GPS, the portable fish finder helps to ensure that no fisherman comes home empty handed.

Fish finders are normally composed of three main component systems. A viewing screen makes it possible to monitor the tracking activity of the assembled GPS system. The device is equipped with a clamping mechanism that makes it possible to securely mount the display in a convenient area of the boat. A transducer makes it possible to broadcast the signaling that makes it possible to locate schools of fish and provide the coordinates to assist the fisher in moving to the appropriate location.

While display capabilities vary from one model to the next, every portable fish finder works in much the same way. The transducer is placed into a position where it is able to broadcast a signal through the hull of the boat and seek activity underwater. As the boat moves around slowly, the transducer picks up on significant amounts of movement occurring underneath. The data is routed to the display screen, providing the fisher with information on what type of activity is occurring and where the largest concentration of action is found.

In order to function, a portable fish finder uses the same type of GPS technology that is employed with GPS systems installed in land vehicles. The display screen may be highly detailed or provide relatively simple imaging that is not unlike a basic graphics presentation. Some models are equipped to accommodate trolling around the river or lake in the boat, while others require the boat to be more or less stationary in order to provide the most accurate readings.

The frequency capabilities will also vary between different brands and models of portable fish finders. Some models are better suited for waters with relatively shallow depths while others are configured to handle much greater depths, as would be common with ocean fishing. More recently, fish finders with an adjustable range for depth perception have become common.

Pricing for a portable fish finder will vary, depending on the features offered with the unit. Models sporting a basic LCD screen will be less expensive than models equipped with full color screens. Units with a greater horizontal and vertical range will also cost more than finders designed to cover a more narrow range.

EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Malcolm Tatum
By Malcolm Tatum
Malcolm Tatum, a former teleconferencing industry professional, followed his passion for trivia, research, and writing to become a full-time freelance writer. He has contributed articles to a variety of print and online publications, including EasyTechJunkie, and his work has also been featured in poetry collections, devotional anthologies, and newspapers. When not writing, Malcolm enjoys collecting vinyl records, following minor league baseball, and cycling.
Discussion Comments
By Terrificli — On Oct 09, 2014

@Soulfox -- How do you know these have become almost standard equipment? A lot of dealerships that sell fishing boats install these and sell them packaged with the boat because they know people expect them.

Keep in mind that we are talking about standard equipment on boats that are used in lakes and very deep rivers. They won't help you track down trout in shallow, fast moving streams.

By Soulfox — On Oct 09, 2014
Those things are standard equipment for fishermen. Some people say using them is a form of cheating because a "real" fisherman should be able to figure out where fish are without resorting to using a machine to track them down.

I disagree. For one thing, a lot of people love to go fishing at night because that is the best time to catch striped bass and some other types of fish. Also, so what if a machine tells you where fish are? Using the right bait and employing the right set of skills is what gets fish out of the lake and on your dining table.

Malcolm Tatum
Malcolm Tatum
Malcolm Tatum, a former teleconferencing industry professional, followed his passion for trivia, research, and writing...
Learn more
EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.