where could I find RF Shield bag? (CA, US)

[electroRF]

Hi,
I'm looking for a RF Shield bag, that will block cellular frequency (1GHz) from the outside.
The size of my unit is just a little smaller than a laptop.
Do you know where I could find one of that size?

I'm located at CA, US.

Thank you very much.

 

[kubeek]

You could use some aluminium or copper mesh to make one, the finer the better. What kind of attenuation do you need to achieve?

 

[ChrisP58]

http://www.ramseytest.com/

You might also try a microwave oven chamber.