Comments on: Why support free networking? http://eric.extremeboredom.net/2006/08/29/261 adventures into and out of extreme boredom. Sun, 02 May 2010 03:16:04 +0000 hourly 1 http://wordpress.org/?v=3.0.3 By: Jorge Suárez http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7447 Jorge Suárez Sun, 03 Sep 2006 23:43:13 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7447 Yes!! and fairly well, it's all matter of studying it a bit. Yes!! and fairly well, it’s all matter of studying it a bit.

]]> By: pixelfactor http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7316 pixelfactor Sat, 02 Sep 2006 21:06:00 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7316 interesting stuff.....has anyone gotten that stuff to actually work ? cheers interesting stuff…..has anyone gotten that stuff to actually work ?

cheers

]]> By: Jorge Suárez http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7231 Jorge Suárez Thu, 31 Aug 2006 19:39:48 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7231 YEs, but 802.11a!, i was mostly refering to 902.11g links. With high gain antennas, all you do is cause trouble to weaker links, it's the same as using an amplifier. YEs, but 802.11a!, i was mostly refering to 902.11g links.

With high gain antennas, all you do is cause trouble to weaker links, it’s the same as using an amplifier.

]]> By: Matt Westervelt http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7185 Matt Westervelt Wed, 30 Aug 2006 23:53:10 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7185 Jorge, If you use the madwifi driver for atheros cards under linux, you can use athctrl to change ack timings. This allows outdoor links using 802.11g and 802.11a. 50 kilometer links with 18mb throughput is possible using 802.11a and a pair of high gain antennas. Interference can be a big problem, but it's amazing what you can do with high gain directionals. Jorge,

If you use the madwifi driver for atheros cards under linux, you can use athctrl to change ack timings. This allows outdoor links using 802.11g and 802.11a.

50 kilometer links with 18mb throughput is possible using 802.11a and a pair of high gain antennas.

Interference can be a big problem, but it’s amazing what you can do with high gain directionals.

]]> By: Jorge Suárez http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7182 Jorge Suárez Wed, 30 Aug 2006 23:08:14 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7182 The problem is modulation, and interference, there are only 11 channels, 13 on some cases, and everyone has a wifi ap around, there are some providers that do, with far more powerful devices and antennas. So the spechtrum is kinda saturated. Also 802.11g modulation seems no good for long distances as far as my work experience tells me, an 802.11b link seems more reliable in any case than an 802.11g, and even on b links, sometimes it's a good idea to go down to 1 or 2mbps. In third world countries like mine, it's still a great idea, networking here is expensive, we are still in the sub mbit era here, with 800kbps around $80, if someone is willing to come here to Ecuador and develop a free net, please do, i'll give my full support The problem is modulation, and interference, there are only 11 channels, 13 on some cases, and everyone has a wifi ap around, there are some providers that do, with far more powerful devices and antennas. So the spechtrum is kinda saturated.

Also 802.11g modulation seems no good for long distances as far as my work experience tells me, an 802.11b link seems more reliable in any case than an 802.11g, and even on b links, sometimes it’s a good idea to go down to 1 or 2mbps.

In third world countries like mine, it’s still a great idea, networking here is expensive, we are still in the sub mbit era here, with 800kbps around $80, if someone is willing to come here to Ecuador and develop a free net, please do, i’ll give my full support

]]> By: FireRabbit http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7165 FireRabbit Wed, 30 Aug 2006 18:45:54 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7165 Ok, so upon further investigation, you are right to some extent. TCP connections over 802.11g/a generally run at no more than 20mbps in ideal conditions. When doing point-to-point links with good antennas and good radios, I don't think it's unrealistic achieve speed around this. 20, or even 15, is still significantly faster than my cable connection... Ok, so upon further investigation, you are right to some extent. TCP connections over 802.11g/a generally run at no more than 20mbps in ideal conditions.

When doing point-to-point links with good antennas and good radios, I don’t think it’s unrealistic achieve speed around this. 20, or even 15, is still significantly faster than my cable connection…

]]> By: Laurent GUERBY http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7163 Laurent GUERBY Wed, 30 Aug 2006 16:20:46 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7163 You have to divide nominal rates by at least 2 to get real wireless rates and that's if you're at less than 10 meter of open space from the antenna. Add a wall and it's less than 1 Mb/s. You have to divide nominal rates by at least 2 to get real wireless rates and that’s if you’re at less than 10 meter of open space from the antenna. Add a wall and it’s less than 1 Mb/s.

]]> By: Max Battcher http://eric.extremeboredom.net/2006/08/29/261/comment-page-1#comment-7115 Max Battcher Wed, 30 Aug 2006 01:59:14 +0000 http://eric.extremeboredom.net/2006/08/29/261#comment-7115 What's your take on the approach taken by FON for spreading wireless? What’s your take on the approach taken by FON for spreading wireless?

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