Dahua Navigator X820, User Manual, Page: 31 / 115

18
No. Name Function
20 PTZ mode lever
2-level lever. It is to select PTZ mode.
Upper level: Course following mode. The PTZ camera angle

changes with aircraft flight direction.
Lower level: Course locking mode. No matter what the 
aircraft flight angles are, the PTZ camera always faces the
same degree to shoot.
21 Record button
Press this button shortly to start recording, and press it again to
stop recording.
22 PTZ pitch pulley Control vertical shooting angle of camera lens.
Table 2-5
Figure 2-14
No. Name Function
23 Zoom in button
Press it for a short time, to zoom in the camera.

Press it for a long time, to zoom in until the camera reaches 
the maximum magnification.
24 Power switch Turn on or turn off the remote control.
25 Zoom out button
Press it for a short time, to zoom out the camera.

Press it for a long time, to zoom out until the camera 
reaches the minimum magnification.
Table 2-6