AJA and Blackmagic Design only: Using this built-in method means that the video card synchronizes to the incoming video signal, so make sure that there is always an incoming video signal and that it is stable. To stabilize the signal in advance (i.e., before it is sent to the video card input) we recommend to use a frame synchronizer which supports the playout format of your channel. Suited frame synchronizers can be found on the AJA Website or you can also use a Blackmagic Design ATEM switcher. If VANC data pass-through is required, an AJA FSx device (except for the mini), or any other frame store which allows passing through VANC data, has to be used. Please contact the manufacturer of all 3rd party video devices which are used with your setup to make sure, that they can handle the VANC data as needed.