I'm using a Blackmagic Decklink 4k Extreme and Sony EV0-9720 for transferring Hi8 tapes but I'm running into issues with tape dropout.

When I encounter severe dropout the card stops capturing. Loss of sync information essentially. Is it possible to use an external sync generator (blackburst) with reference outputs to provide a stable signal to both the Hi8 deck and the decklink card so regardless of what happens on the tape, the card will continue to capture? It's possible I'm confusing the purpose of a sync generator.