Embodiments of the present invention include radio frequency identification location systems and methods. A set top box includes a server that allows an access device to access the set top box over an always on connection between the set top box and a network such as the Internet. In this case, by setting the upper limit of the sealing base to the lower surface of the flange of the tray, it is possible for the deck plate to receive the tension of the film acting on the tray through the packaged item.