If you have purchased Clearwire’s 4G WiMax modem and relocated to a suburban neighborhood with poor reception, here’s a quick fix to boost  signal. This simple tin foil fix works perfect for users. As seen in the photo, make the foil in form of a dish and place it at the back of the modem device. You should start receiving better signals right away. If you want to get more technical, you can cut a large paper plate in half, wrap it in aluminum foil and make foil feet or flat area at the bottom of the paper plate half and set it behind the router, phone or WiMax router and it will act as a directional dish.