What is the difference between M-code and P-code in GPS?

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P-code, or Precision code, is a GPS signal designed for high accuracy and is primarily used by military and authorized users. M-code is a newer signal that enhances security and resistance to jamming, providing improved performance for military applications. While both codes serve different purposes within GPS technology, M-code is specifically developed to address vulnerabilities associated with P-code. The distinction lies in M-code's advanced features aimed at modernizing GPS capabilities for defense use. Understanding these differences is crucial for users relying on GPS for precise navigation and military operations.
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Hi,In GPS there is a P-code which stands for Precision code. Recently I heard of a so called M-code. Is it the same as P-code or something else?Senmeis
 
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