[RFI] RF tight rooms - somewhat OT

[qrv at kd4e.com]

What about a 20' steel shipping container - well-grounded.

Nearly-indestructible in storms, excellent for storage,
and all metal.

They come with waterproof vents to remove gases from the
items being transported but he will need a way to deal
with air supply (and hvac) and electricity.

> 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



-- 

Thanks! & 73, KD4E.com

David Colburn - Nevils, Georgia USA

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