Re: [TCML] America's Got Talent - Camera interference

[olivaw@xxxxxxxxx]

On Sat, 14 Aug 2010 06:49:03 +0800, you wrote:

>After 14 TV shoots I have seen TV cameras monitors turn to hash on a number 
>of occasions. (scary on a $50,000 unit). My large coil within say 20+ feet 
>will certainly cause a problem.

Kind of OT, but I was once brought a camera (pre-CCD days; magnetic
deflection pickup tubes) that was horribly out of registration.  It checked
out on the charts just fine, and I asked, "Where were you shooting with
this?"
"Oh, the new lab that has a huge superconducting magnet!"
I can't quote my exact reply...
Don't forget, the signal from a CCD is tiny, and there's a pre-amp in the
same module with lots of gain.  Shielding (Brits: we mean "screening") can
do only so much...

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla