MARS stands for Military Auxiliary Radio System. We are headquartered at Fort Huachuca, Arizona, and assigned to the Headquarters, United States Army Network Enterprise Technology Command (NETCOM). Army MARS is a Department of Defense sponsored program which utilizes Amateur Radio operators to contribute to the mission of the Department of the Army. Army MARS members must have access to HF radio equipment, file a monthly report, and participate a minimum of 18 hours on HF radio each quarter.

To join Army MARS, renew your Authorization to Operate, transfer from another MARS service, or to update the information in your record, such as address, email, or telephone number, download and complete the application form provided below.