Genlock and sync explained practically
Why every source must tick to the same clock and how to make it happen.
Genlock gives every device a common reference clock (blackburst or tri-level sync) so pictures line up when you cut - without it you get a jump or glitch on the transition.
In practice
- One sync generator, distributed to all devices.
- Verify each device actually looks at the reference.
- Cable lengths and termination matter.
GenlockSync