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 Wednesday, September 08 2010 @ 04:57 PM CDT

Airport Express Turned Up

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WIFII got a great deal on a MacMall sale for an Airport Express. Today, I lit it up to stream my MBP iTunes to the Yamaha receiver in my media center. I set it up as a wireless client to my head end WRT54GL/X-Wrt router. Very nice and have been groovin' in Hi-Fi since.

 
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BiQuad Success

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WIFII decided it was time to revisit my BiQuad WIFI antenna project so that I would have a way to test my hotspot. I went back to the online articles I had bookmarked and was embarrassed to find that I had the feed hooked up wrong to the BiQuad driven element. I won't go into the gory details but, suffice it to say that, it would never have worked the way I had it hooked up, gleep!

At any rate, I made the connection changes and pointed the antenna at my neighbor Art's house about 300yds. down river, just out of line of site, shaded by the edge of a plateau on the hillside between here and there. Then I paid a visit to Art with a laptop and gee-wizzed him with high speed INTERNET service. Art normally gets only 21.6kbps via the local rural ISP and seems about to take up stamp collecting instead of his internet activities.

I want to build another one if these BiQuads and hook them up pointing up and down river (that's at about 120 degrees as I am on a bend of the river), and turn on some more neighbors. But first, I need to find a recipe for a 2.4gHz power divider. No test equipment available here for building and testing one from scratch.

 
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Serrano Hotspot

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WIFIA month of 3 digit afternoon temperatures had me hiding out in my air conditioned lab where among other things, I used the opportunity to turn up instances of chillispot 1.0.2, apache+mod_ssl-1.3.37+2.8.28, freeradius-1.1.7 and mysql-5.0.45 on some old (PII) server hardware (running FreeBSD-6.2) I had laying around. I used venture37's FreeBSD chillispot port for a quick start. I made a few changes to pf.conf accommodating my LAN topology and now have a bare bones hotspot to share some of my bandwidth w/ a few neighbors up and down the river. Nice piece of work venture37, thank you!

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More testing w/ Bi-Quad

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WIFII noticed wild signal level fluctuations on the WIFI link yesterday and discovered that Patty was moving around in the kitchen preparing a meal. I should have known better....

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Bi-Quad Update

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WIFIChecked the dimensions on the Bi-Quad antenna and all were within +/-0.5mm. Drat, not sure what is going on here but, it's going to be a while before I can test the coaxial feed configuratioin because, I need to locate my hoard of copper and brass fittings to make it.

It may be easier to find what I need to build a test patch antenna.

 
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Bi-Quad Antenna Performance

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WIFIBoy, was I surprised when I found that the new WIFI Bi-Quad antenna did not improve performance of my link.....

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New WIFI Antenna

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WIFIJust finished fab on a new 'bi-quad' antenna. Click the image (~800kB), to have a look.

I got the info for this antenna from 'martybugs.net' site which does a real nice job of packaging up several home-brew WIFI antenna projects. I made one change to the construction where I just used a 14ga post for the ground side of the feedpoint as opposed to the specified 'coaxial' extension above the 'reflector' as shown on the martybug.net site.

Monday, I expect to receive a shipment of 'jumpers' to hook this antenna up to the Airnet AP. I'll post results when I have them.

 
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WIFI Imrprovements

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WIFISince turning up WildBlue for INTERNET access, I have been using my Netgear WGT624 v2 wireless router/AP to ship connectivity from the shop building, where the WildBlue dish and modem are located, to the residence. I've been using the "vanilla" rubber ducks on both ends of the link, getting only about 18mb/s connection.

That's about to change.....

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