Dee to the planned high reliance on GPS for aviation applications, if a radio frequency interference (RFI) incident does occur, the rapid location and removal of the source will be essential. Such rapid response capability requires widespread deployment of the field detection instrumentation. Achieving wide-spread deployment at reasonable costs requires the development of new approaches to source lcation. When a rare report of interference is received, these systems must be operable by non-specialists with minimal training. The U.S. DOT Vlope National Transportation Systems Center (Volpe Center), under the sponsorship of the Federal Avaiation Administration, is currently developing two innovative instruments for locating sources of RFI to GPS.
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