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Build Your Own Directional WiFi Antenna by olive zhu
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Build Your Own Directional WiFi Antenna |
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Business
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USB WiFi devices
USB WiFi devices and mobile WIFI antennaare sorta so-so because the Ethernet WiFi devices can be used at the end of a really long cable, where you are limited with length using USB. You also can use Ethernet WiFi devices when connected to networks (Between routers, or joining networks with one router and multiple access points and multiple switches.. In general you have more flexibility and compatibility when using Ethernet WiFi equipment. I don't understand why USB is so popular despite it's limitations.
PCI cards
PCI cards are a joke as well as most of them are behind your computer with a fixed antenna in poor locations offering little to no benefit at all over Ethernet devices. However PCI cards sometimes offer you a more comprehensive control over reporting more WiFi details than your USB devices. Again, you need a wireless device for every computer you have as you cannot share the connection easily in a network.
Routers
Routers are sometimes equipped with two to three WLAN antenna. Having to use Parabolic reflectors with multiple antenna's is not only difficult but also expensive as you need to double to triple the cost of extending your range by use of boosters or reflectors. Doesn't make sense to me having anything equipped with more than 1 antenna. Ranges with WiFi is so "Near" that it is easier to drag a Ethernet cord between my computers which are close enough to do so. Having to introduce latencies, intermittent service outages due to interferences, security holes with WEP/WAP AND increasing the hardware requirements and costs in actually using WiFi at reasonable distances is in most cases easier to simply run a cable.
Ethernet Access Points
Ethernet Access Points often are toted around by D-link and Linksys as being just that Access points. Be very careful with what you buy as these manufacturers quite often lure you into thinking that you will be able to use the AP to connect to your router. They often play with terms like Access Point or Bridge Mode WiFi and strip out all the features out like being able to do site surveys, repeater mode with client association, multiple bridge mode (Link multiple routers), or allow using a DHCP server. I have yet to find a WiFi device that I liked. Closest thing I could find that would give me some signal levels and options was a Netgear WG602 Access point. However that unit has some nasty firmware bugs and 4 hours over the phone with Netgear support tells me that they are not willing to admit it or incapable of understanding why. Buy these units only if they are inexpensive enough to compensate from the troubleshooting time of hardware resetting them every time you change a setting in the wrong order. Overall Ethernet Devices are the best because you can hook them up to the end of a inexpensive and up to 100 foot length of cable. Repositioning these devices to the ideal location is a snap and networking them to multiple computers is a no-brainer. As such is in my opinion Ethernet is the ideal choice.
www.yc-antenna.cn/ is a hi-tech enterprise specialized in the development and production of communication antennas; our leading portfolio are the high quality antenna products, including wlan antenna, wifi antenna, wimax antenna, wireless antenna, GSM antenna, CDMA antenna, GPS antenna, RFID antenna, 2.4GHz antenna, 5.8GHz antenna etc.. We also supply a full range of antenna components: power splitters, surge protectors, router enclosure, etc. This article come from:http://www.mobilesaccessories.net/index.php/build-your-own-directional-wifi-antenna-2.htm
Related Articles -
mobile WIFI antenna, WLAN antenna,
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