I
recently did Wi-Fi for a law firm that had the same floors as you
describe. Even with a top notch Cisco 1200 AP and high gain antenna's, the
coverage through the floor was so pathetic, that the installation called for an
additional set of AP's in the lower floor fed by fiber.
The
bottom line for me was No-Go. My test was pure B, G has even more range
issues.
I
suggest you give it up as a bad job and drop a CAT5e down to the other floor and
stick and AP where it needs to be.
Cheers
Nigel
Nigel Ballard
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Wednesday, June 18, 2003 1:33 PM
To: [EMAIL PROTECTED]
Cc: 'Richard Buckley'
Subject: [BAWUG] concreteHi folksWe 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 appreciatedKind RegardsOliver Dempseyphone: 00353 502 26263mobile: 00353 86 8219430---------------------Making you stand out on the Net, see what aBarrowvale website can do for you at www.barrowvale.com
