Re: [BAWUG] concrete

[S Woodside]

Concrete is (relatively) irrelevant, it's the metal content that matters. If the walls are just cinderblock, that's not so bad, but if they're rebar (i.e., reinforced concrete with metal bars) then you probably won't be able to get through, it's a faraday shield.

And by the way, many/most modern concrete buildings are made of rebar for the floors at a minimum, the walls might be cinderblock though?

simon

On Wednesday, June 18, 2003, at 04:32 PM, <[EMAIL PROTECTED]> wrote:

Hi folks
We are working in a concrete building with thick concrete floors and walls and we need to go through approx. 4feet of concrete at a distance of 150 feet.� We are using a Lynksys 54g access point and 9db antenna being picked up by a WMP54G Wireless PCI LAN Adapter.� It is not working for us at the moment, do we need to use a stronger antenna to pick up the signal or will any signal get through 4 feet of concrete at all?
�
I have seen only one thread in the recent past dealing with the thickness of concrete where someone stated that "

driving a 12cm wave through a couple meters of concrete and steel doesn't

work that well..."
�
�
Any thoughts on it would be greatly appreciated
�
�
�
Kind Regards
Oliver Dempsey
phone:�00353 502 26263
mobile: 00353 86 8219430

--
www.simonwoodside.com -- 99% Devil, 1% Angel