As a member of the precision instruments maintenance team, the TMDE Maintenance Support Specialist calibrates and repairs test, measurement, and diagnostic equipment, such as weapon-aiming devices, weather instruments, gyrocompasses, radiation-detecting equipment, and instruments used in aircraft. Job training for TMDE Maintenance Support Specialists consists of 10 weeks of Basic Training, where you'll learn basic Soldiering skills, and 34 weeks of Advanced Individual Training and on-the-job instruction, including practice in repairing precision instruments.