directional wifi antenna construction
how to build a directional antenna for your wifi card
What'll they think of next?
Five products stand out in the tech world that would make suitable Father’s Day gifts, if you’re the type who plans in advance. They involve a simple plastic device that makes your iPad truly mobile, a way to boost the strength of your wireless signal at home or work, a pocket device that would make the most germaphobic of us smile, and a way to pop open a cold one with your iPhone.
iTab Grip
This is one of those products that seems like a gimmick at first but really does make using your iPad a lot easier when on the go. There seems a constant need for three hands to use an iPad while standing or walking about or even riding public transportation, unless you were gifted with freakishly large hands.
The question posed by itabgrip.com staff to the many tablet users who tried out the iTab_Grip: “Without an iTab_Grip, is your iPad tablet really a mobile device?” My answer would have to be, no based on the many iPad users I have observed. (Keep waiting for my editor to give me one as a token of appreciation, which is why this column is being written on a six-year old eMac.)
Build your own directional with Antenna WiFi USB
I first tried using a WiFi Booster. To impress on the promise of a effective solution I acquired the most powerful 1Watt booster I could find on Ebay. Knowing that the default transmission output on most WiFi devices being in around the 0.025 Watt range, I was absolutely sure that I should be able to notice a definite increase in my range. I even tried ordering several Chinese knock-off 9dbi and 12dbi antenna's as well. I performed empirical tests with a Pocket PC and two computers in fixed positions away from each other over a extended period of time to achieve accurate results. All the other non-brand name antenna's worked with a signal level comparable to or worse than the stock 2dbi antenna. It would have seemed that the knock off's were either not manufactured properly or were mismatched to the used frequencies. Aside from the signal quality, the Chinese Knock-off's either were advertised at different gains for the same antenna's and quite often you are unable to use the antenna without the corded stand as they use a proprietary gendered connection type which is not usable with real life WiFi units. Disappointed in them I threw them out rather than trouble myself with spending time repackaging and paying to ship them back to China. So I decided to use the D-link antenna as my first choice before proceeding further as it was the "Only choice". I tested the 1Watt boosters for 6 months straight. After 6 months I had all the boosters degrade to a failed mode where they actually worsened the WiFi signals. In the beginning however they did boost the range of the WiFi but only noticeable on the transmission aspect of things. The boosters work by switching between transmit mode and receive mode in a "Half-duplex" manner. It must be able to detect when the WiFi device is trying to transmit and switch into the transmit mode to do so. This usually takes time to go into the transmit mode, which they refer to as "Time Division". That means that it can only transmit or receive...
Wifi Antenna Directional - News
EnGenius Technologies Introduces a Wireless N Router and USB Wireless Adapter ...
For example, the ESR-9753 has a high-gain antenna that, if necessary, is detachable and upgradable for greater range or highly sensitive directional range.
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HTC Imagio wields multimedia prowess Still, we like it quite a bit, especially since the Imagio even comes with an antenna that doubles as a kickstand, so you can set it on a flat surface for and more » |
No more 'draft:' 802.11n Wi-Fi certification program finally begins
SlashGearNo more 'draft:' 802.11n Wi-Fi certification program finally beginsSince interference may always be a problem, the new 11n standard (the one with the matrix logo) will utilize a multiple-antenna encoding technique called New tag lines are also offered for devices passing certain testsWi-Fi Alliance updates Wi-Fi certified 802.11n prog Wednesday 30 September Wi-Fi Alliance Launches Updated Wi-Fi CERTIFIED(TM) n Programall 73 news articles »
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Ethertronics Expands Its Prestta(TM) Line With Introduction of a Penta-Band ... including Prestta(TM) metal, Savvi(TM) ceramic, and Tavvel(TM) active antennas support a wide range of applications including cellular, UMTS, WiFi, LTE, and more » |
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Other News Releases in New Products & Services Other News Releases in New Products & ServicesThe 1.3 x 1.8 inch WiFi-IT! module operates in the 2.4 GHz ISM band and is available in two antenna configurations. It is approved by the FCC for use in the NPE, GainSpan Unveil WiFi-IT! Module, a Low-Power Wi-Fi Sensorall 3 news articles » |
