The ICD-GPS-153 protocol uses the following communication parameters:
ICD-GPS-153 receivers operate in two primary modes: icd-gps-153 protocol
Frequently used in military land systems, ruggedized tactical time/frequency systems, and avionics to integrate SAASM-based (Selective Availability Anti-Spoofing Module) GPS receivers. Common Applications: Technical Architecture of the Protocol
| Feature | Civil GPS (L1 C/A) | Military GPS (ICD-GPS-153) | | :--- | :--- | :--- | | | L1 C/A (Unencrypted) | L1/L2 P(Y) code, M-Code (Encrypted) | | Accuracy | ~3-5 meters (with WAAS) | <1 meter (Precision Positioning Service) | | Security | None (vulnerable to spoofing) | Cryptographically authenticated (SAASM/M-Code) | | Protocol | NMEA 0183, UBX, RTCM | ICD-GPS-153 (binary, secure) | | Data Fields | Lat/Lon, Time, Speed, Course | Full PVT, plus velocity, acceleration, integrity, UTC, GPS time, and classified vectors. | ruggedized tactical time/frequency systems