A network switch control digital video recorder is provided. The refueling station can be refilled with a lower pressure hydrogen gas feed and then compressed for storage within the refueling station. The display package may include a plurality of product housings adapted to rotate with respect to each other along a common axis such that product portions within the product housings may be selectively aligned to form desired configurations of a completed, displayed product. By optimizing the use of cached position requests, throttling of location requests per the invention reduces network traffic significantly, increases the efficiency of a positioning server, and provides for an improved grade or quality of location based services in general. 42 megahertz, but does not have location data nor subframes 1, 2, or 3, as found in an ordinary GPS signal.