# primary radar

> radar sensor that illuminates a large portion of space with an electromagnetic wave and receives back the reflected waves from targets within that space

**Wikidata**: [Q2110245](https://www.wikidata.org/wiki/Q2110245)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Primary_radar)  
**Source**: https://4ort.xyz/entity/primary-radar