Icd-gps-153 Protocol Jun 2026

If you are an engineer or developer trying to implement a GPS interface, you should look to (formerly ICD-GPS-200). This is the standard that defines how 99% of the world's GPS receivers decode the L1 C/A signal.

Together, these three components form a powerful triangle: SAASM provides the secure GPS signal, the DAGR (or similar receiver) processes that data, and the ICD-GPS-153 standard defines how that data is packaged and sent to a SINCGARS radio or other host system.

Acts as the communication protocol for the Defense Advanced GPS Receiver.

Error-detecting code to prevent data corruption. 2. Bidirectional Capabilities icd-gps-153 protocol

stands for Interface Control Document . The number 153 refers to a specific document within the GPS enterprise. Officially titled "Interface Control Document (ICD) for the GPS User Equipment (UE) Precision Lightweight GPS Receiver (PLGR) Interface," the standard has evolved far beyond its original hardware namesake.

The ICD-GPS-153 protocol was first introduced by the U.S. Department of Defense (DoD) in the 1980s as part of the GPS system's development. The document provides a detailed description of the communication protocol used for transmitting data between GPS satellites and user equipment, such as GPS receivers. The protocol defines the format and structure of the data transmitted, as well as the communication channels and signal structures used.

ICD-GPS-153 is extensively used in environments requiring high reliability and security. If you are an engineer or developer trying

These precision timing systems can emulate an ICD-GPS-153C compatible SAASM GPS without a SAASM receiver. They generate the three core messages, sending time and 1PPS signals to external SINCGARS-compatible devices. Position and velocity information is zeroed out, but the timing data is accurate and emulates the interface flawlessly.

The Navfix system, used across the majority of the Royal Navy's surface and submarine platforms, has been designed to be agnostic to the GPS receiver, meaning any ICD-GPS-153 compliant receiver can be used. This highlights the protocol's role in ensuring interoperability and reducing logistical complexity.

ICD-GPS-153 is a specialized GPS interface control document primarily used by military-grade GPS receivers. Its full name is ICD-GPS-153, and it has been widely adopted in systems like the military's DAGR handheld receiver. The protocol defines the message formats and communication rules between a GPS receiver (typically a SAASM receiver) and a host system. Acts as the communication protocol for the Defense

ICD-GPS-153 defines dozens of message types, but the most critical for developers are:

Known as GSSIP (GPS Standard Serial Interface Protocol).