[RFI] RF tight rooms - somewhat OT

[n0tt1 at juno.com]

Hi Gents,

I know a crystal radio enthusiast in CA that lives near
a 50KW BCB radio station.  He's been having trouble
making Q-meter measurements on some of his hi-Q
coils using a HP Q-meter.  He's been making 
experiments with various shielding methods
using an AM BCB portable radio as a detector.
He says that the best he's found so far is aluminum
foil, as long as the "seal" is tight.

To make a room that is large enough for him and a bench
takes a LOT of foil.  The floor, ceiling, walls, floor and a
good seal on a screened door would be needed for a 
really good RF room.  The power for the room would also
have to be filtered or he could use a computer's UPS.  The 
shielding would be grounded, and the shielding, whether 
it's say, chicken wire, AL screen, etc would have to be 
bonded together at the corners.  Then the door would 
have to be sealed as well (maybe metal weatherstripping
for that?).

My question to the group is what, in your opinion, is the
best/cheapest RF-tight test room he could build for himself?
Has anyone on this list done that?

73,
Charlie, N0TT