IS 19321:2025

NavIC Receiver — Specification

This Indian Standard provides a comprehensive and structured framework for defining the performance, testing, and conformity requirements of NavIC receivers. Recognizing the critical role of India’s indigenous Navigation with Indian Constellation (NavIC) system in ensuring accurate positioning, navigation, and timing, the standard underscores its importance for transportation, disaster management, geospatial applications, and national resilience. By consolidating national requirements and aligning them with recognized international practices, it establishes NavIC receivers as a fundamental enabler of reliable navigation services.

Applicable across diverse applications, the specification prescribes key terminologies, scope, and requirements for receiver sensitivity, acquisition and tracking performance, accuracy of position, velocity and time, robustness against interference, input signal dynamic range, and time-to-first-fix under both cold and hot start conditions. It further sets out performance expectations for handling receiver dynamics, electromagnetic compatibility, and output data formats to ensure interoperability and system integrity.

Complementary provisions define procedures for sampling, marking, conformity assessment, and certification. Detailed testing methodologies—including static and dynamic scenarios, interference resilience checks, and timing performance evaluations—are incorporated to ensure uniformity and traceability across receiver designs.

IS 19321:2025 seeks to assure manufacturers, regulators, and users of product reliability, thereby enhancing navigation safety, technological self-reliance, and the development of robust, future-ready infrastructure.

Last Updated on September 8, 2025