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While most commercial drones and marine electronics use NMEA (National Marine Electronics Association) text-based sentences, is a more robust, specialized alternative for military hardware. ICD-GPS-153 (GSSIP) Primary Use Commercial/Marine Military (DoD Standard) Format ASCII Text Sentences Binary/Mixed Structured Messages Security Minimal (Standard) Supports SAASM and Anti-Jam info Typical Hardware Smartphones, Boats PLGR, Tactical Transceivers Why It Matters Today
Providing detailed "Figure of Merit" (FOM) data to indicate the reliability and validity of position and velocity fixes.
: Unlike standard NMEA messages, this protocol outputs high-fidelity data including Position, Velocity, and Time (PVT) , Pseudorange (PR), Delta Range (DR), and detailed SAASM/satellite status information.
: Frequently used in tactical sensors like the VectorNav VN-210 to interface with external military GPS units. Standard Message Examples
It facilitates the loading of "Black Keys" and handles Over-The-Air-Rekeying (OTAR) for secure satellite communication. Accessing the Full Specification