{"id":2372,"date":"2023-01-13T03:59:42","date_gmt":"2023-01-13T03:59:42","guid":{"rendered":"https:\/\/starlinkhow.com\/?p=2372"},"modified":"2023-01-13T09:21:58","modified_gmt":"2023-01-13T09:21:58","slug":"gps-m-code","status":"publish","type":"post","link":"https:\/\/starlinkhow.com\/gps-m-code\/","title":{"rendered":"GPS M-Code: A Powerful, Encrypted Military Code Satellite Signal"},"content":{"rendered":"\n
GPS has at least 30 satellites in orbit that provide positioning, navigation, and timing (PNT) data to receivers on earth. Owned by the US government and operated by the US Air Force, the satellite constellation sends signals on earth, some for commercial use and others for military operations. However, these communication frequencies were non-secure, which made it easy for adversaries to jam and manipulate them. So it was necessary to upgrade the system to have an encrypted military signal that became the M code. We will analyze this GPS M code signal to see its capabilities, characteristics, and operational benefits. Read on to learn more!<\/p>\n\n\n
One of the United States Air Force’s plans to modernize the Global Positioning System<\/a> included introducing encrypted M-code signals that enhance anti-jamming and spoofing protection. So the M code is a powerful, highly secure military code signal that is more secure than the GPS signals<\/a> used today.<\/p>\n\n\n\n Since multiple branches of the US government rely on PNT<\/a> data, intentional or unintentional jamming or spoofing can cause signal disruption with severe consequences.<\/p>\n\n\n\n The upgrade began as the M-Code Early Use (MCEU) program, which gave command and control of M-Code capability to 12 GPS IIF<\/a> and eight GPS Block IIR-M satellites<\/a>. The program will provide the same functions to the new GPS III satellites.<\/p>\n\n\n\n