Zend certified PHP/Magento developer

picking up wifi from 300ft [closed]

I know this should be easy since I already have a sporadic connection with the antenna stock on my laptop.

The solution would be a repeating device with a more robust antenna. Because I do not need to connect multiple devices, the cost can probably be minimal.

Either this repeater or adapter come to mind.

Perhaps there is a way to lookup the dbi rating of these to find out how to maximize the signal input range — any advice on the most economical but robust way of picking up a wifi signal at 300ft?