1.when video input switch turns to HDMI, the gear is in HDMI input function. Can connect HDMI output device, and turn the HDMI signal into CVBS before sending.
2. when video input switch turns to CAM, the gear is in CVBS input function.
Can send the output CVBS signal from camera directly.
3.when video input switch turns to MCU, HDMI and CVBS two-way video signal input at same time.The default is HDMI input, by connected with aircraft remote control receiver with PPM line,
provides video input channel to remote control for air channel switch.
4. When gear is connected with aircraft remote control by PPM line, it can switch channel in the air.
5. When work with RC800, you can connect RC800 with remote control to achieve channel sync adjustment.
Note: functions 3-5 can work on futaba remote control.