Blackmagic 40x409/27/2023 ![]() ![]() every device before the break will see an unterminated signal at about double its normal level. If you have to remove a piece of gear in the chain somewhere between the source and the final termination, not only will every piece of gear downstream of the break lose its feed. My station's original facility used loopthroughs extensively for both reference signals and video signals, and while that certainly reduces the number of distribution amplifiers needed, it can lead to some remarkably non-obvious problems. Just want to add a gentle warning about the tradeoffs of using loopthroughs. So all you'd need to genlock the router is a video cable - if your Aja DA doesn't have enough outputs to send one to the Videohub, you could send the reference to the Tricaster through the router first. Looking at the picture of the 40x40 Videohub on the Blackmagic website, it looks like reference has a loopthrough. I've seen some gear exhibit a glitch for as long as two seconds - you may not be able to put a newly-routed source on air for up to two seconds after a route. ![]() I'm not familiar with this specific equipment - I don't know how a Tricaster responds to a sync discontinuity. Murphy's Law requires that the worst possible source will always get on the air, whether a human intentionally punched it up or not. If you don't plan to change any routes while the destination is live on the air, you may not care. ![]() Because if you happen to hit the button to change a route at the wrong time, you might interrupt a synchronizing signal. Not genlocking the router could lead to "glitchy" routes. ![]()
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