Live sonar is used in various industries, including fishing, marine construction, and environmental monitoring.

Technical Aspects of Live Sonar

Live sonar systems use a combination of sonar technology and advanced signal processing to provide real-time imaging of underwater objects and movements. The system consists of a transducer, a receiver, and a display unit. The transducer converts sound waves into electrical signals, which are then transmitted to the receiver. The receiver processes the signals and sends them to the display unit, where they are displayed as a 2D image.

Rich Kale is an influential angler in ­Punta Gorda, Florida. He installed Lowrance’s Active Target sonar last year. His salty friends ­began installing live sonar as well.

He’s been fishing here for over 20 years and has learned to pinpoint the tarpon’s movements and patterns. In the summer months, the waters around Boca Grande Pass are warm and inviting to tarpon. They congregate near the surface, making them easier to catch. In the winter months, however, the tarpon move to deeper waters, becoming more elusive. The changing seasons and water temperatures trigger these movements, as the tarpon seek to exploit the abundance of baitfish in the different environments. Kale’s method of fishing is often referred to as dead-stick fishing. This technique involves casting a line into the water, allowing the line to drift, and then using a stick to keep the line steady, allowing the fish to bite naturally. It’s a patient and quiet approach that allows the angler to blend in with the surroundings.

The density of the water affects the speed of the sound wave, which in turn affects the range of the sonar. ##

High Frequency Sonar

High frequency sonar uses a very high frequency, typically above 100 kHz, to create a detailed image of the underwater environment. This frequency range is chosen because it allows for a high resolution image to be created, even in murky or dirty water. • The high frequency sonar emits a very short pulse, which is then reflected off the target and returned to the sonar unit. • The pulse is then processed to create a detailed image of the target, including its size, shape, and location. ##

Limitations of High Frequency Sonar

While high frequency sonar is effective in creating detailed images, it does have some limitations. The density of salt water can reduce the range of the sonar by up to 40 percent. • The speed of the sound wave is affected by the density of the water, which can cause the sonar signal to be weakened or distorted. • This can result in a reduced range or accuracy of the sonar, making it less effective in certain situations. ##

Low Frequency Sonar

Low frequency sonar, on the other hand, uses a lower frequency, typically below 100 kHz.

While LiveScope is not a live sonar system, it does provide real-time sonar data and allows you to view it on the map. The live scope feature is enabled by connecting the LiveScope device to your Garmin GPSMAP device via a USB cable, or by connecting it to a Garmin VHF radio via a network cable.

Humminbird’s marketing strategy is to focus on freshwater fishing, but they also have a strong presence in saltwater fishing.

High-End Electronics

Humminbird offers a range of high-end electronics that cater to both freshwater and saltwater fishing. Their products are designed to provide anglers with accurate and reliable information to help them make informed decisions on the water. • GPS mapping technology*

Advanced Sonar Systems

Humminbird’s advanced sonar systems are designed to provide anglers with a deeper understanding of their surroundings.

Hummingbird’s Mega Live 2 camera system is now capable of capturing images with a higher resolution and greater detail than its predecessor. This upgrade focuses on enhancing the visual quality of the Mega Live 2 system, particularly in low-light environments, where image clarity is often compromised by ambient light interference.