Archive for the 'Wifi' Category

biQuad (and double biQuad) homemade wifi Antenna: 14db !

After the omnidirectionnal antennas, and the can-antenna, here comes the new one:

This is a biQuad, and a double-biQuad antenna. You can find the construction guide (in Fr) here.
As usuall the photos is in the Brest-Wireless gallery
The small one is about 11/12db .. and the biggest one: ~ 14db !!
Update: Fix links

admin April 19th, 2005

Wifi can-antenna ;)

I decide to launch a new wireless antenna collection. Here is my new homemade one.

You can discover all photos here, and the construction guide

admin April 5th, 2005

Quick and Dirty: Speed up wifi lookup of ndiswrapper

Have you see how many time, it takes to ndiswrapper to deliver the scan result ? It’s about 3,25 sec on my builtin wireless card. This is too much no ? Specialy if you want to write a application to scan for AP level.
The quick and dirty way to fix that (it works fine for [...]

admin February 23rd, 2005

Homemade Omnidirectionnal Wifi Antenna

Once again, i tested several wireless design.

The spider
The spider is a simple to do (really), quarter wave omni-directional antenna. The cost: a female N :) Beside this antenna doesn’t have any gain, it prove to be really usefull, mainly for wardriving because it’s small, and offer really better performance than the default PCMCIA builtins (because [...]

admin February 19th, 2005

Have fun with a Gkrellm on a WRT54G ? Geeky no ..:)

Ok a little screenshot is perhaps better than a long talk.

Yes, I use gkrellm to monitor my WRT (mainly the bandwith, CPU Load .. and other stuffs). This is pretty easy to use, and friendly no ?
update: I miss the URL: http://chriscarey.us/software/gkrellm/wrt54g/

admin February 1st, 2005

SD15 Antenna at Home

Yes, I added a new SD15 at home

Check out this if you want some photos

admin January 31st, 2005

Homemade Wifi Antenna ?

I never do that before, but some guys give me this really fancy antenna.

Check out Brest Wireless photo album for more infos
Update: I tested this last night. In fact the gain of this beautifull antenna
is around 17dB. Yes ! 17dB for a homemade antenna is pretty high, no ? I really like this stuff
Update 2: [...]

admin January 22nd, 2005

Ntp on a WRT54

Ok, everybody know ntp. But how can i use it on a linksys WRT54 to set up clock once.. without a decent man page ?
ntpclient -s -c 1 -h local-ntp-server.domain

admin January 3rd, 2005

Tsunami and Cisco

I have been a long time what a "tsunami" is. After recent news, I guess everybody know what this evil is about.
Do you think Cisco will still use "tsunami" as default for ESSID for their wireless products ? I haven’t a aironet card on my desk right now, but believe me, the default ESSID for [...]

admin December 29th, 2004

OpenWRT Admin Tool in PHP

In a recent post, i described the build of Python for a WRT. I didn’t manage to finish this hack. So I decided to use a PHP interface. Here the first screenshot

admin December 23rd, 2004