Oftentimes, using a Garmin Fishfinder 140 makes locating fish simpler. However, using the system effectively does take a certain amount of skill; users should not expect to simply install the system and use it without having read the manual previously.
The device comes equipped with two different forms of sonar to locate fish. The first type is a narrow beam, most effective when fishing in deeper waters. The narrow beam reveals what lies directly beneath the boat and a small circular area around the boat. The other sonar is a wide beam, which works best in shallow waters. Contrasting with the narrow beam, as its name implies, the wide beam affords a wider purview of what is located in the water.
The device is also equipped with the technology to actually see through fish and other objects in the water to provide a crisper return image. Also, on particularly windy days, the Auto-Gain setting can be adjusted to reduce interference. To make installation and upkeep simpler, the device carries a wiring connection which simultaneously connects the power source and the transducer, so the connection can be easily removed, if needed. All of the pieces required to attach the Garmin Fishfinder 140 to the boat are provided upon purchase.
Aesthetically, the device looks much like a car’s GPS system. There is a 4-inch greyscale screen to indicate where the fish are swimming. The greyscale screen works by saturation; the bottom of the lake or river will appear as the darkest portion, and fish will appear as blots on the screen. Fishers can use their judgment to determine the differences between general debris and actual fish. Because the device is made to a smaller scale, it fits nicely on to all different sizes of vessel.
Fish are continuously on the move; the unique Ultrascroll feature refreshes at quick speeds to provide the most recent positions of the fish in the area. The device also comes with 2x and 4x zoom; this feature can aid fishers in determining whether an object on the screen is actually a fish. There are also alarms that can be set for certain water depths, fish sizes, and a warning when the battery gets low. There are also two different power scales available, either 100 or 800 watts, depending upon the boat’s capacity. The combination of size, price, and the quality delivered by the Garmin Fishfinder 140 make it a logical purchase for those in the market for a fish sonar.