Technical Overview

Radar Position Analysis System (RPAS)

In In Fiscal Year 1995, TSC began developing a siting tool for the U.S. Army FIREFINDER Program. The Army funded the development of a system, designated FFPAS, for the AN/TPQ-37 radar.

The Army tested this siting tool in Korea and Bosnia. In Fiscal Year 1996, TSC developed a version of FFPAS for the AN/TPQ-36 and subsequently delivered an AN/TPQ-46A version to the U.S. Marine Corps. Early versions of FFPAS operated on a Sun Workstation. Believing that FFPAS had potential as a commercial product, TSC undertook an IR&D program in Fiscal Year 1997 to modify and rehost FFPAS on a PC.

In Fiscal Year 1999, the U.S. Government purchased the rights to distribute the PC version throughout the U.S. Department of Defense. A color brochure describing the FFPAS software tool was prepared in Fiscal Year 2000, and has been widely distributed to the U.S. Army and potential foreign customers. In Fiscal Year 2001, an upgraded version of FFPAS was released that included multiple weapon analysis capabilities and improved radar models. It also included additional features sought by users who had found novel applications of this flexible tool.


FFPAS Version 4 for Windows and Solaris was released in June of 2004. In 2009, following the development and addition of an AN/TPQ-48 Lightweight Counter Mortar Radar (LCMR) model, the product name was changed from FFPAS to RPAS (Radar Position Analysis System). RPAS Version 4.5 received Certificate of Networthiness (CoN) approval in February 2010. In 2011 TSC developed an RPAS model for the AN/TPQ-53 EQ-36 radar and released it in RPAS version 4.5.7

RPAS is approved for export and several foreign defense ministries have acquired or expressed genuine interest in the product.