It's extremely important that Army National Guard communications don't fall into the wrong hands. As the Radio and Communications Security Repairer, you will maintain the equipment and systems that ensure Army National Guard units can communicate over secure channels. Your duties will include installing and repairing circuits and wiring, calibrating and aligning equipment components, and stringing overhead cables between utility poles. Other duties include repairing systems, performing equipment tests, and performing preventive maintenance checks and services on equipment. Advanced Radio and Communications Security Repairers take on more challenging projects, including training and supervising other Soldiers, testing equipment, performing complex repairs, and ensuring that the National Security Agency-approved components are used in communication security/controlled cryptographic item repairs.