Hi Steve!! Good to have you back
Hope we'll eventually get to hear the stories from your last gigs
Did you ever find out what made that intermittent noise?
...No. There wasn't much time to look around and it actually went away (the noise). Pretty sure it was coming from all the cables lying around. I did use my own cables tough, and never had a problem like that, but it must happen a lot I guess. The Mixer was a portable one, so I had it on my lap...isolated...I guess!? and The noise was specifically on one of the cameras, the other one was perfect. The three, 2 cameras and mixer, were powered with portable batteries. Lights, monitor, and the Gib-crane were pluged, but tried to avoid power cables the most.
Thanks for all the advice, I'll look for the transformers in the internet so I'll learn something.