Identifying fish size on sonar is very difficult since you can change the size with sensitivity adjustments or depth range. Fish look larger on a depth range of 20 foot than 100 foot. The size of a fish is determined by the color of the fish arch. For example if you have palette colors yellow, blue and red.
How do you use a fish finder effectively?
One trick to using these fish finders effectively is to remember that the chart always moves right to left. This isn’t based on your movement, it’s based on a time scale and when you’re anchored or not moving, the chart will continue to scan the same area and still move across the screen left to right.
How do you read a fish finder Mark? – Related Questions
What are the long lines on a fish finder?
A long arch only means that a fish was in your sonar cone for a longer period of time. The best indicator of fish size is the width of the fish arch. If an arch or line is thick and the color intense, then you’re marking a bigger fish.
Most fish on Side Imaging or down Imaging basically look like white dots. It is important to know that not only can you see a little white dot but you also will see the dot’s shadow. The closer that the white dot is to the shadow the closer that fish is to the bottom!
Does a fish finder show depth?
Fish finders are ideal tools for reading depth, seeing the bottom contour and finding underwater features. Sometimes this information will be more valuable to you than actually marking fish.
Do fish finders work when not moving?
2D, Down Imaging, and Side Imaging are designed to work from a moving boat, they’re not made to work sitting still (or barely moving). It’s possible to adjust the fish finder speed and settings to have a general idea of what’s below the boat but you’re not going to get detailed images.
Why does a fish finder scroll?
The incoming signals are displayed sequentially scrolling from the right side of the screen to the left. The right side displays what the fish finder sees in that instant, and this data scrolls to the left. The data on screen is purposefully moving at a constant speed, scrolling from the right to the left.
What does GPS do on a fish finder?
GPS not only allows you to track your course and create mapping of favorite fishing spots, structure, and water hazards, it could also save your life. Most GPS units come with pre-installed maps. To obtain more detailed and updated GPS data, however, invest in a Lakemaster or Navionics SD card.
So, mostly you can’t see salmon on fishfinders, but sometimes you can. Here’s how it works: Salmon gulp air from the water, so sometimes they can have some air in them, but usually not much. A salmon will show up about like a herring or something, one small dot on the screen that looks like a bit of static.