Yup... They are known as passive reflectors or billboard reflectors.
Microflect specializes in this form of passive reflector.
You can see an example of one at:
http://www.qsl.net/n9zia/pics/passive_repeater.jpg
Tim
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Curry
> Sent: Tuesday, September 17, 2002 22:33
> To: Jeremy Brown; [EMAIL PROTECTED]
> Subject: RE: [BAWUG] using metal wall as antenna
>
> Not an antenna, but maybe a reflector?
>
> -----Original Message-----
> From: Jeremy Brown [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 17, 2002 8:43 AM
> To: [EMAIL PROTECTED]
> Subject: [BAWUG] using metal wall as antenna
>
> Strange building problem. One of the rooms in our temporary office space
> apparently used to be a commercial kitchen. The shared walls are covered in
> stainless steel.
>
> Has anyone tried to use a large piece of metal for an antenna, apart from
> the radiation patterns not being uniform?
>
> Thanks,
> Jeremy
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