Hi all, I am new to electronics and just purchased the last piece of the puzzle. I have the lithium shuttle with the garmin striker 4cv and the GT8HW, all new. I am having issues and I’m curious if the transducer/unit is bad or if it’s the operator. I have the correct transducer selected, and when I’m using the sonar, the sound from the transducer has fast chirps, then slows down, then to no sound. This repeats over and over. I filled a bucket with water and have the transducer sitting on top. The depth is not reading, the sonar speed and depth mark fluctuates along with the sound coming from the transducer. (Scrolls fast when the chirps are fast, and slows down when the chirp sound slows down). I also plugged in the GT20 that came with the striker4 and it does the same thing. I plan on calling Garmin customer service, thought I’d reach out and see what some of you thought, and could possibly give some suggestions. Hopefully my explaining the issue makes some sense. I’ll try posting a video of what I’m experiencing if I can. Thanks