Biquad Wifi
Is a market available for wifi directional low cost antennas.?
These antennas are biquad and double biquad.
Absolutely... however the market is already flooded with them. Here are some links with antennas as low as $8.00.
Check below links in eBay and Amazon
Hope this helps!
WiFi Anten Tarayıcı + BiQuad Anten wifi-sistem.com
.
 |
 WiFi Antenna Biquad Cantenna Dish GET FREE INTERNET  US $3.99
|
 RP SMA N Male WiFi Pigtail Cable Biquad Yagi Cantenna US $9.99
|
 BIQUAD ANTENNA WIFI CANTENNA ALTERNATIVE 12DB US $12.99
|
 biquad antenna coax RP SMA RP TNC WIfi coax US $15.00
|
 DIY WiFi biquad dish antenna Copper Clad PCB Only US $5.00
|
 RP TNC to N Male WiFi Linksys BiQuad Cantenna Yagi USB US $9.99
|
 BIQUAD ANTENNA WIFI CANTENNA ALTERNATIVE CNNECTOR 12DB US $12.99
|
 BiQuad Wifi Grabber Antenna Long Range Wireless Antenna N type connector US $.99
|
--------------- AMAZON --------------------
 Build a BiQuad 3x WiFi Booster Wardriving WiFi Antenna List Price: DescriptionJust like me I am sure you have tried almost all different types of wireless antenna's. There is an extra sense of love you share with the antenna if you built it yourself. If you have never built an antenna, this is a great first kit for a child or adult - easy to build in less than an hour and very powerful--...  |
 5.8 GHz 24 dBi ISM / UNII Band Solid Parabolic Dish Antenna Sale Price: $137.99  Eligible for free shipping!Availability: Usually ships in 1-2 business days DescriptionHyperGain parabolic dish WiFi antennas are designed for long-range operation and feature heavy-duty yet lightweight weatherproof construction. |
[af
High Gain WiFi Antenna
Martin has a great tutorial for building an 11dBi gain biquad WiFi antenna. You can follow his instructions here. Comparable gain antennas typically sell for around $100 U.S. The cost of materials used for Martin's biquad should be around $15 U.S. Not a bad deal considering that you can build one in an afternoon.
I have built a number of biquads based on his design and done extensive practical testing. I'd like to share these insights with you. Study Martin's tutorial and come back here for several tips that will make the construction and use easier.
Connecting the antenna to a computer
The antenna is going to boost your signal a lot. I have logged into a public hotspot from 23km (17m) using only the biquad in a moving vehicle! To be fair, I was in a rural area on a hill overlooking a small town. There was little in the way of interference from other microwave sources. The connection was not particularly good but 23km is unthinkable for stock antennas that come with consumer networking equipment.
When I first looked into the building one of these I didn't quite understand how to connect the antenna to the computer. You can tap straight into your network card or motherboard. This is not for the faint of heart. You can cause permanent damage by soldering pieces onto your motherboard. A far easier solution in case of a laptop computer is to get a PCMCIA wireless card with an external antenna connector. I have a Buffalo card that works very well. Even without an external antenna it's much more sensitive than my older Linksys cards.
To properly connect the wireless card to the biquad you will need a short adaptor cable called "pigtail." Ebay is a great place for finding the right pigtail for your application. The cable is not particularly expensive. When purchasing one consider that that signal loss is proportional to the length of the pigtail. Choose as short of a pigtail as practical.
fmage source="overstock" results="5"]Biquad Wifi[/affmage]
