I live in Las Vegas, NV. and I'm using a Clear Hub Wireless 4G Express as my wireless connection for my Desk Top PC [ Windows 7 ] I contacted Clear Support and did every thing they told me to do to try to improve the signal but the reception is still terrible. On a good day I only get 2 lights out of 5 on the unit. Can anyone recommend a decent correct kind of external antenna that might help. It has to be cheap because I don't know if it will even help. Thank you.