Co-site interference tests of JTIDS, EPLRS, SINCGARS, and MSE (MSRT)

The authors describe the background for the conduct of and the results of a series of tests conducted at Tobyhanna Army Depot to determine the potential degradation in performance if Joint Tactical Information Distribution System (JTIDS), Enhanced Position Location Reporting System (EPLRS), Single Channel Ground and Airborne Radio System (SINCGARS), and Mobile Subscriber Equipment (MSE) Mobile Subscriber Radio-Telephone Terminals (MSRT) are collocated in or in proximity to a vehicular mounted shelter. As a special request, additional tests were conducted to determine the degradation in performance that would be experienced if two EPLRSs and a SINCGARS were collocated. It is concluded that the antenna configuration presently planned for the Net Control Station for the JTIDS (NCS-J) and the Dedicated JTIDS Relay Unit (DJRU) will not create any cosite interference. The planned collocation of two EPLRS terminals in a vehicle or shelter will reduce the throughput of the terminals by approximately 3%.<>