The AN/TPQ-37 Firefinder Reliability, Maintainability, Improvement (RMI) weapon locating radar upgrade will provide significant improvements over the current fielded AN/TPQ-37 system by providing new, state-of-the-art electronics. The Reliability, Maintainability, Improvement radar upgrade will extend the system service life of the AN/TPQ-37 it to remain the mainstay of long-range artillery.