https://help.rossvideo.com/ultra/Topics/Setup/ViewControl/Setup-Overview_HDMI.html
From the Manual:
- When the switcher is operating in UHDTV1, the ViewControl output is 1080p.
- Only inputs 3 or 8 can be used for the ViewControl overlay in UHDTV1.
Inputs 3 and 8 are special inputs where you can also do Quad link in UHD (Ultra single link is on 1-2-3 (or quad 3/4/5/6) Single link then on 7 - 8 (or quad 8/9/10/11) with Single link then on inputs 12-24.
These inputs are also able to then be used in a 1080p mode to bring in the ViewControl Overlay to place On top of the MV which needs to be in 1080p when in UHD.
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Les O'Reilly
Director - Switcher Product Management
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