The sonar mounting plate on the Pro 5 can be tilted up 5 degrees or down 15 degrees to improve viewing angles while looking at ship’s hulls or searching the bottom.
Adjusting the Tilt
To position the sonar for horizontal use (the default tilt), the mounting plate hole 2 should be aligned with frame hole A, and the mounting plate hole 4 should be aligned with frame hole B. The plate should be secured using the supplied 8-32 x 3/4″ screws.

Sonar Mounting Plate

Sonar Mounting Frame
Downward Tilt Use
To position the sonar for 15 degree downward use (for bottom searching), the mounting plate hole 2 should be aligned with frame hole A, and the mounting plate hole 3 should be aligned with frame hole C.
Upward Tilt Use
To position the sonar for 5 degree updward use (for viewing ship’s hulls or the underside of docks), the mounting plate hole 1 should be aligned with frame hole A, and the mounting plate hole 4 should be aligned with frame hole B.