My Garmin is mounted correctly based on the instillation instructions. It doesn't seem to mark fish until I have slowed down to 4 miles per hour or stop. Any suggestions would be helpful.
This unit marks well at up to 23 mph. This photo is at 31 mph. I see three to four marks here with a really good one at mid screen. At higher speeds, you’re just looking for vertical lines on the noiseI have 3 93/94 sv's , all mark fish to about 8-10mph , and I never lose bottom reading/depth , even at 45+ mph , would lo e to see walleye at say 25+........
I posted that pic in case your expectations were too high. This is all you’re going to get above about 25. At 20, the vertical dashes look more like upwards pointing arrowheads. When you mentioned you never lose bottom at any speed, I suspected you had your transducer placed correctly. There is an ‘ultrafast’ scroll speed you could try on the Garmin. I don’t do it because then you have to remember to set it back. This video by Jon Thelen made me realize my expectations were too high. He’s using a humminbird in this video, but it’s applicable to any 2D unit. I think 15-20mph is the sweet spot for searching. Someone else mentioned the color line and that’s addressed in this video.Guess I need to read it better , that's what my screen looks like