http://wiki.portertech.org/ 2009-12-18T06:12:46-06:00 http://wiki.portertech.org/ http://wiki.portertech.org/lib/images/favicon.ico text/html 2009-04-09T20:39:57-06:00 http://wiki.portertech.org/doku.php?id=eeepc900-ext-antenna&rev=1239327597&do=diff Fitting An External rpSMA Connector To The Rear Of A Eeepc900 Copyright Terry Porter 2008,2009 Terrys email address Note April 2009: I have installed Ubuntu 9.04 Beta, from the live cd. It is dual boot with Debian lenny on this EeeePC900 and it is just *perfect* for everyday tasks, such as internet connectivity, via WiFi or USB Wireless Broadband, browsing, etc. Very well done Ubuntu! text/html 2009-01-05T04:48:07-06:00 http://wiki.portertech.org/doku.php?id=eeepc900&rev=1231152487&do=diff Fitting An External rpSMA Connector To The Rear Of A Eeepc900 text/html 2009-01-05T04:45:41-06:00 http://wiki.portertech.org/doku.php?id=hardware-hacks&rev=1231152341&do=diff EeePC900 text/html 2009-05-07T01:06:55-06:00 http://wiki.portertech.org/doku.php?id=linux&rev=1241676415&do=diff Uninterruptible Power Supplies and NUT text/html 2009-08-24T02:30:02-06:00 http://wiki.portertech.org/doku.php?id=rpa&rev=1251099002&do=diff Benefits: * Your customer wants a WiFi link, he knows the locations he wants linked, but when you look from one point to the other, all you see is trees, you can't even see the other end. A Radio Path Analysis will show if hidden hills are in the way. * Save the time and expense of finding out your new WiFi link does not work after it is installed. * You have a six kilometer WiFi link to connect, but you can't see the other end, it's lost in haze. Is the other end on that hill, or is it … text/html 2009-05-07T01:04:48-06:00 http://wiki.portertech.org/doku.php?id=start&rev=1241676288&do=diff Copyright Terry Porter 2008,2009 Terrys email address Hardware hacks WiFi Linux text/html 2009-01-18T17:07:33-06:00 http://wiki.portertech.org/doku.php?id=testing-wifi-bridge&rev=1232320053&do=diff Ping Test * The two AP-Bridges are connected to each other via coax cables with a HP digital 0 - 18 Ghz attenuator in the middle. Each AP has a output power of 19.542 dBm (90mW) which we will call 20dBm for brevity. * I want a receive level of around -70dBm at each AP, so 70 + 20 = 90dB, which is what the HP digital attenuator will be set to. The coax cables will introduce about -1.4dB of loss, which I'll ignore. * B2 network port is not used * B2 is wired to my local network 192.168.0… text/html 2009-05-07T04:00:46-06:00 http://wiki.portertech.org/doku.php?id=ups&rev=1241686846&do=diff [ The Nova 6000 AVR UPS] [ The final result] Basic Steps Please Note: NUT is immensely configurable, from multiple UPSes on a multi supply server, with staggered shutdows etc, and fully networked status and control. My tutorial only covers the minimum requirements to get NUT going on a local pc. Please consult the documentation at the Nut homepage, and web tutorials for the full NUT story. text/html 2009-05-29T05:22:37-06:00 http://wiki.portertech.org/doku.php?id=wifi-bridge-faultfinding&rev=1243592557&do=diff Situation: A local medical centre has a WiFI bridge link between buildings, which feeds a WiFi AP for local staff use, see the picture below:- text/html 2009-01-14T00:40:49-06:00 http://wiki.portertech.org/doku.php?id=wifi-bridge&rev=1231915249&do=diff Testing WiFi bridge text/html 2009-08-24T00:26:34-06:00 http://wiki.portertech.org/doku.php?id=wifi&rev=1251091594&do=diff WiFi Bridge WiFi Bridge Faultfinding Radio Path Analysis