Defines the electrical and data interface requirements for DoD Standard GPS User Equipment (UE).
Vahn found Tanaka in the aft sensor bay. He was hunched over an unshielded console, his fingers dancing across a manual override. On the main screen, a single point of light blinked—a rogue asteroid, three light-seconds to port. But next to it, in Tanaka’s custom frame, was a second dot. A ghost. icd-gps-153 protocol
This document is classified "Secret / NATO Restricted" because it contains the keys to the most secure GPS signals. Unauthorized possession of ICD-GPS-153 is a violation of U.S. export controls (ITAR). Defines the electrical and data interface requirements for