[ale] OT: Wireless Questions

[Hogg, Russell E]

FWIW trees are really nasty dealing with anything 2.4G because that's the resonating frequency of water.  Your microwave works on this principle.  

If linksys says 3 miles then expect 2/3 of that in the Georgia humidity and line of sight.  I will point out that I've gotten half a mile out of a plain old omni directional antenna that was placed high enough up though.

Linksys makes a consumer level amp that you might try to although I think I heard that it sucked.


Maybe consider building a 4 dollar "can-tenna" yourself before investing in high dollar hardware.  If you're really serious, some folks out at either black hat or defcon built a horn out of a 100 worth of stuff at home depot and got 35 miles out of the thing a .8 watts.  

Their site here: http://www.adversarialsciencelab.net


I betcha that's less than you paid for that YAGI.  And yes a good antenna at both ends is definitely an aid.


Seems there are quite a few sharp wireless people on the list.
Those are just
My 2 cents


Russ









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-----Original Message-----
From: Tim LaCroix [mailto:cheese4all at yahoo.com] 
To: ale at ale.org
Sent: Thursday, August 28, 2003 1:20 PM
To: ale at ale.org
Subject: [ale] OT: Wireless Questions



Hey all, I ran into something I can't fix, thought
someone here may know. 


I got a D-Link 614+ and a Yagi D-Link ANT24-1801 and I
am trying to go a half mile to a computer sitting with
a Belkin 802.11b USB nic. I called up D-Link and they
just said that a professional wireless installer must
install it. I asked if there were any in Savannah, he
couldn't say. But regardless, I am merely attempting
to go 1/2 mile through trees, houses and people to
reach a nic sitting in an office. The thing has a 15
degree beam. The Yagi boasts a 3 mile range, but
looking at some cisco texts on their equivalent it
seems that 2 concrete walls are enough to stop the
connection. Is it wise to get another antenna or a nic
with an antenna like the DWL-AG520 for the recieving
end? Or is the only option to site this thing out with
a laser going 3 stories up and aiming it to be within
inches. Any assistance or advice would be great. 


Thanks.
Tim LaCroix
CCNA (general all around "fix the computer thing" guy)



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