If you're a fisherman who likes to find and stay on the fish, then you need a Lowrance Mark-4 HDI fish finder. This powerful unit uses advanced technology to give you a clear picture of what's happening beneath your boat, so you can find and stay on the fish. Here's how to use your Lowrance Mark-4 HDI fish finder to get the most out of your time on the water.
The first thing you need to do is power up your Lowrance Mark-4 HDI fish finder. Once it's turned on, you'll see the main display screen. This is where you'll see all the information that the unit is gathering about the underwater environment.
To adjust the settings on the Lowrance Mark-4 HDI fish finder, just touch the buttons on the right side of the display. The bottom button is used to select the depth range that you want to scan. The next button up is used