RUST, The Remote User SeT

Steve Lazar and Stephen Sottong

Abstract:	An inexpensive method for remotely controlling and interrogating Global Positioning System (GPS) user equipment (UE) is described. The Remote User SeT (RUST) uses personal computers (PCs), a data acquisition card, GPS specific and primarily off-the-shelf software. Its purpose is to control and obtain GPS data from one or more remote UE via commercial phone lines. RUST has been demonstrated with both U.S. Government Standard UE and commercial UE, using both standard and secure telephone unit (STU III) modems. In the case of a U.S. Government Standard user set, a PC and buffer box software was used to acquire the data via the instrumentation port. In the case of a commercial UE without the instrumentation port, raw navigation message data was acquired via a data acquisition card through a test port and transmitted over a PC-PC link. Pseudo-range and other data was also acquired remotely via a built-in RS-232 port and transmitted over commercial phone lines. The primary application of RUST is to support GPS system tests from the Master Control Station (MCS) at Falcon Air Force Base in Colorado Springs, Colorado. In this application, the MCS obtains user set navigation data from the 'telecommunications simulator' at Cape Canaveral Air Force
Published in:	Proceedings of the 46th Annual Meeting of The Institute of Navigation (1990) June 26 - 28, 1990 Atlantic City, NJ
Pages:	139 - 145
Cite this article:	Lazar, Steve, Sottong, Stephen, "RUST, The Remote User SeT," Proceedings of the 46th Annual Meeting of The Institute of Navigation (1990), Atlantic City, NJ, June 1990, pp. 139-145.
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