U.S. Marines and civilian personnel receive and inspect the Handheld Radio Test Set (HHRTS) during fielding with II Marine Expeditionary Force at Marine Corps Base Camp Lejeune, N.C., on May 21, 2025. HHRTS is a portable, all-in-one diagnostics tool designed to support tactical radio maintenance at the field level, eliminating the need to retrograde systems for basic troubleshooting.