Blackburst Generators....what when how and WHY ???

Hi,
I have started using FCP 7 years ago while I was still studying. Started working with DV, small projects, no money, no idea about the technology, learned it all by making mistakes are spending lots of time on forums like this one and reading lots of articles. Now I have started to work for bigger companies, I'm editing for the telly, and things are going well. I know some things about the decks and hardware I'm using, but a lot I don't know.
Now, one company I work for, they use a blackburst generator. The other company doesn't. The one without the bbg tends to have problems capturing or playing out materials onto their decks. I was wondering whether the bbg might have something to do with this.
This may just be the dumbest thing I have asked on this forum so far. But bear with me, help me overcome my stupidity. Make me smart (don't care much about handsome) and happy. Please.
What exactly does a blackburst generator do?
Why would I need one?
What might happen if I don't use one (working with BetaSP and DigiBeta decks)?
Any thoughts, any help is much appreciated. Maybe there are books on this, but I haven't found any. And the manuals I have read so far are a wee bit too technical for me.
Cheers and thanks a lot,
Colin

What exactly does a blackburst generator do? < </div>
Any good video technology book will clear this up for you. It's not complicated but it is technobabble. amazon.com and search for video text books. Your local library may have a couple.
"Black" is a composite color NTSC video signal that contains all 6 kinds of timing signals (vertical sync, vertical blanking, horizontal sync, subcarrrier, and umm, some others). Most modern video gear has the ability to use black as a genlock source and strip off any timing components it requires. Note that providing one or more timing signals to various components is quite different from providing genlock.
Why would I need one? < </div>
You don't. If you do,, you don't need to ask because your gear manuals will clearly indicate where it gets hooked up.
What might happen if I don't use one (working with BetaSP and DigiBeta decks)?< </div>
Open the manuals to see if you need one. It will be obvious but I repsectifully disagree with the others about the artifacts that are created when sync or timing signals are or are not present. Most video decks do not require sync or genlock to playback, you Macintosh certainly doesn't and most decks will use any coherent input signal (your camera) as the sync reference. However, unless you have a timebase corrector on it, another deck will NOT be sufficiently stable to provide proper sync when dubbing. Maybe.
bogiesan

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Blackburst Generators....what when how and WHY ???

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