hello a friend asked me to buy for him a cheap wifi as he has not the effort to have internet so his apartment neighbor can give him his wireless password to be able to connect to the net he has a usb wifi but the signal is very low , most time zero level so im asking for you to tell me a good and cheap wifi brand with external antenna (to put him at the balcony for example) to be able to connect to the internet with he's friend network to clear some things i dont want to tell me a super wifi brands that can reach 500 meters for example i want to find some normal wifi brands thanks in advanced