August 29, 200421 yr Ok here is the deal-eo my sister is getting DSL at her business but it is not going to be offered at her home. Her home is like ~2 miles away. I have played around with some long range stuff but nothing quite this far. I have been reading about people using home made antennas to shoot a wifi signal 10 miles and some college guys did an 80 mile shot from two mountains. What I was wondering is if anyone here has a background in this and could tell me if I am spinning my wheels. I have looked at some sites and got a lot of formulas to calculate my angles/tilts/power/curve of the earth....ect. I *think* at anything under 10 miles earth curve should be negligible....right? Basically what I was planning on doing was getting some altitude calculation and looking up the area on a topo map then trying to decide how high I was going to have to raise the antenna. I am thinking for 2 miles 30 feet (top of the building) and then maybe 10 feet at her home should be enough. The two antenna I have picked out are directional 24db gain with a 8 degree beam. Not sure how much loss for cable yet but I am going to try to keep it down. My power from the linksys WRT54G would be around 15 dbm but I can adjust between 0-84mw of power with my new firmware.. This by no means is going to be optical line of sight but I am wondering if the high gain antenna should help me over come some basic trees and other such obstruction and still keep me around 60% fresnel-zone? I am trying to keep this low budge and in FCC standards also btw...so I have pretty much ruled and amp out. Here is some of my pages I have been researching....Thanks for ANYONE who can give some help. http://www.ilmukomputer.com/berseri/onno-wifi/html/ch-11-radio-link-calculation.htm http://hyperlinktech.com/web/hg2424g.php http://www.ydi.com/calculation/fresnel-zone.php http://www.ydi.com/calculation/som.php And for the real low cost option! http://www.wwc.edu/~frohro/Airport/Primestar/Primestar.html For other interesting info about long distance wifi http://palmtops.about.com/b/a/049175.htm http://palmtops.about.com/gi/dynamic/offsite.htm?site=http://classes.weber.edu/wireless/
August 29, 200421 yr Author Oh one other thing.....from and 8 degree beam how much would it spread at that distance? Just wondering how much security to put on it. Was thinking maybe 128 bit WEP, MAC filtering, but I wasnt sure about turning off SID at that distance..?How long you think it would take to airsnort that 128 bit?If all else fails I could try hooking up a 14.4 modem to some tin cans and string...you know an Alabama LAN....lol
August 29, 200421 yr Author Oh one other thing.....from and 8 degree beam how much would it spread at that distance? Just wondering how much security to put on it. Was thinking maybe 128 bit WEP, MAC filtering, but I wasnt sure about turning off SID at that distance..?How long you think it would take to airsnort that 128 bit?If all else fails I could try hooking up a 14.4 modem to some tin cans and string...you know an Alabama LAN....lol
August 29, 200421 yr Author most of the stuff like airsnort require linux. Even though they could spoof a mac I dont think they would bother trying to get around both for a simple home connection. I wasnt sure if the 128 had been broken or not.
August 29, 200421 yr Author most of the stuff like airsnort require linux. Even though they could spoof a mac I dont think they would bother trying to get around both for a simple home connection. I wasnt sure if the 128 had been broken or not.
August 29, 200421 yr Author Sure it will work! http://www.wwc.edu/~frohro/Airport/Primestar/Primestar.html
August 29, 200421 yr Author Sure it will work! http://www.wwc.edu/~frohro/Airport/Primestar/Primestar.html
August 29, 200421 yr Author btw repo this is most likely what I will use on atleast one end of the link. http://hyperlinktech.com/web/hg2424g.php
August 29, 200421 yr Author btw repo this is most likely what I will use on atleast one end of the link. http://hyperlinktech.com/web/hg2424g.php
August 29, 200421 yr this is connected to a company so if sombody get in they have access to a lot of stuff?wep is ok but getting packets and cracking them is very easyid get an ids (intution detection system) do mac filteringclosed essid 128 wep and depending on what is on the companys networkid be changing keys almost dailyits not really if you can stop ppl from getting in the network its more like1) does anybody want to2) how long is it going to take themthe only thing that big companys do to protect they wi fi networks arevpn's and very expensive idss as in hundreds of thousands of dollar ids
August 29, 200421 yr this is connected to a company so if sombody get in they have access to a lot of stuff?wep is ok but getting packets and cracking them is very easyid get an ids (intution detection system) do mac filteringclosed essid 128 wep and depending on what is on the companys networkid be changing keys almost dailyits not really if you can stop ppl from getting in the network its more like1) does anybody want to2) how long is it going to take themthe only thing that big companys do to protect they wi fi networks arevpn's and very expensive idss as in hundreds of thousands of dollar ids
August 29, 200421 yr its very important to disable broadcasting to ssid, if u dont wireless noobs can be on ur network without even knowing it.128 bit encryption is important also.i also recommend using the mac address filter to only allow ur sisters computer's mac address to use the access point
August 29, 200421 yr its very important to disable broadcasting to ssid, if u dont wireless noobs can be on ur network without even knowing it.128 bit encryption is important also.i also recommend using the mac address filter to only allow ur sisters computer's mac address to use the access point
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