It sends and receives radio signals to and from other wireless devices. Similar to a CB radio only in computer language.
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There are many places where a WiFi antenna can be purchased. These include local electronics stores, computing stores and sites such as Amazon or eBay.
No.
Depending on the make and model of the USB WiFi antenna, it can boost a WiFi signal range up to 1000 feet and some claim to boost the signal by four times whatever the current output is.
There is not a specific place to put it.
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When purchasing a wifi antenna, you must consider whether if you really need it or not. Most electronics come with wireless connection these days. Antennas are less commonly used.
A router is used to send a WiFi signal. A router's antenna can be replaced with a higher-performing antenna. However, many websites offer do-it-yourself instructions to make free or very-low cost WiFi-signal boosters from items such as tin cans.
In order to setup a homemade wifi antenna, you would need materials such as Duct tape, Bowl, Soldering tools, Wifi antenna, Drill (optional) and Wifi antenna node. First thing you need to consider when setting up the antenna is what kind of antenna to use. The directional ones can be good for great distances. However their deflection angles have limitations and their width cannot go beyond 30 degrees. It's good for long distance but poor for local transmission. So if you want local transmission, an omnidirectional antenna could be a good choice. Once the antenna has been decided next is to take off the handle from the pan's cover and use the hole to pass the homemade wifi antenna's cable. If there isn't a hole, thenyou need to make one in the middle. Use a drill to make the hole. Next set the wifi node in the middle of the lid and the setup will force the emanating wave to focus in one direction. You can also make use of other reflectors. Metallic pipes or cans should be fine. Usually, the parabolic dish has a wider angle so it's better to use. Finally its time to test your reciever to check it does the job. Set the wifi dish at the receiver and give the signal a try. Under certain conditions, the signal can go as far as ten miles. Using a reflector will help in generating a stronger signal for the homemade wifi antenna.
If your wifi router has an antenna that can be replaced i would suggest just buying a bigger better one off ebay. The antenna you have now is probably only a few inches long, get one like the one in the link below to really boost your wifi signal round your house.
Try calling Apple and ask them 1 (800) 676-2775
Any company can provide long range Wifi. All you need to do is buy a long range antenna and hook it up to your existing router. These can be found on eBay or amazon.
To extend your wifi range at home a wifi extender can be bought at Bestbuy, Target, or another electronic selling store. One of the best wifi extenders that can be bought today is the Netgear wifi extender.