# Friis transmission equation

> formula in telecommunications engineering of antenna performance

**Wikidata**: [Q601459](https://www.wikidata.org/wiki/Q601459)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Friis_transmission_equation)  
**Source**: https://4ort.xyz/entity/friis-transmission-equation


## References

1. Freebase Data Dumps. 2013