[CA] [CA11] Realvision 3D - loss of bottom

[watsala]

Hello,

We have recently installed Real Vision 3D with the Port/Starboard sensors with the 20 degree dead rise.

We have not used it a lot yet, but initial tests seemed ok, and we could see the bottom return in RV3D.

During the weekend several times I could not get a bottom return on the RV3D - however it was returning fish, and the sonar mode was also functioning clearly.

This was in about 10m of water. I tried both auto and manually adjusting the gain and surface clutter settings, but to no avail.

What steps can I take to trouble shoot this?

Thanks,

Watsala