A couple of hundred feet away may be too far for a good signal receiption.
You can increase your signal with an aerial.
You may need to go into the cafe or park yourself nexr door to the cafe.
Use Google to see what is available on the Internet.
Here are a few WEB sites for you to look at.
http://www.gadgetbuy.com.au/index.php?/office-gadgets/usb-802.11n-wifi-dongle-for-desktops-+-laptops-150-mbps.html
http://shop.ebay.com.au/sis.html?_nkw=USB+WiFi+Dongle+Desktops+Laptops+150Mbps+Wireless+Adapt
http://www.mobilefun.co.uk/usb-wifi-dongle-p11590.htm
read my comment. ;) if you reply to my comment, I'll give you 4 stars instead of three.
Two bars is not a good signal strength and the speed will drop of with this level.
The adapter you selected appears to be a good one, you will not know how it performs until to try it out.
Do you know how I can calculate the range of these USB adapters?
If would be difficult because of too many unknown parameters. ie, the transmitter power, the efficiency of your wireless receiver, exact distance between the transmitter and receiver etc.
A field signal strength test meter would provide a more accurate reading at your location.
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Wi-Fi technology enables wireless Internet and network access through public and private hot spots.
These hot spots are widely located in homes, restaurants, bookstores, coffee shops and other businesses, so you can keep connected wherever you may travel.
To connect to Wi-Fi, you must have an enabled wireless adapter on your computer.
Most modern laptops and many desktops have this adapter built into the system, but many lack such capabilities.
However, a wireless adapter is easily installed via USB, which allows you to connect to available networks through Windows 7.
Enable your wireless adapter. Most laptops have a hot key labeled with a radio antenna.
Hold the "Fn" key and press this key to toggle wireless on or off.
Desktops likely have a physical antenna on the back of your computer that is typically always on. If you don't see such a hot key or antenna, you need to acquire a USB wireless adapter.
Attach the USB wireless adapter to an available USB port on your computer.
Windows 7 will automatically install the necessary drivers for most adapters.
If it does not, insert the CD that came with the USB wireless adapter into your drive and choose to install their drivers.
Restart your computer if you do not see a wireless icon in your Windows 7 notification area.
Click the wireless icon in the Windows 7 notification area and click the network name to which you want to connect.
If this is your home network, the correct network will likely be the one with the strongest signal.
Click "Connect" and enter the wireless security passphrase, if required.
Only secured networks will ask for a passphrase, but some public networks will require browser authentication instead.
Open your browser and navigate to any website.
If the hot spot requires browser authentication, your website request is redirected to an information page.
Follow the instructions on this page to get Wi-Fi.
This may entail clicking "Accept," entering a given password or entering a cell phone number.
After authentication, attempt your website again to verify accessibility.
Hope this helps
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My cheap adapter I got on amazon, 150mbps IEEE802.11 B/G/N, can receive up to 18mbps, which shows 2 bars, so i don't think it's a couple hundred feet away. I think it's a couple hundred meters. Would this adapter in this link work?
http://www.amazon.com/802-11g-Wireless-L...
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