# Selective availability anti-spoofing module

> Feature of the Global Positioning System

**Wikidata**: [Q7447754](https://www.wikidata.org/wiki/Q7447754)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Selective_availability_anti-spoofing_module)  
**Source**: https://4ort.xyz/entity/selective-availability-anti-spoofing-module