how to avoid mobile frequency within a room

hello friends,
i am planning to do a project which avoid mobile frequncies in a room .so anybody having a knowledge or done will u please guide me where to begin and what all things i have to consider.


with regards
Aamir

I think you cannot avoid the mobile frquencies from entering the room. Anyways you can jam the mobile frequency by introducing noise to it.

Google "anechoic chamber" to begin with.

hide behind a sofa?

There is a large area in the middle of the australian desert (where they have the VLA astronomy telescopes) where no wireless signals are allowed for a long distance. You could do your experiement there. Other than that, you will need to make a shield room (not just an anechoic chamber) with metal walls, metal doors, and spring finger door gaskets. All AC power coming into the room will have to be lowpass filtered.

I have seen do it yourself shield rooms made by stapling copper screen mesh to the walls/celing/floor...but you still have the problem of leakage at the door.

ya thats what i can do it.thanks
but can u please tell me how to introduce noise signals and if i send it through RF it can work it seems.