Some users like to have the Tilt or Y-axis direction reversed so that when the joystick is moved down, the picture actually tilts upward. Here's how you can change the direction of the Tilt:

1) First, press the Function button on the RP-150 Controller

2) From the touchscreen, tap on the PTZ INFO 2 button

3) Then tap on row 2 that contains the options to change the direction of your Pan, Tilt, Zoom, and Focus

4) According the example graphic above, all the directions are set to "Normal". So you want to reverse the Tilt direction, use the F2 knob to change that option to "Reverse"

5) To save, press the F2 knob.