# Recommendation G.117 (11/1988): Transmission aspects of unbalance about earth (definitions and methods)

> superseded recommendation/international standard from the International Telecommunication Union

**Wikidata**: [Q27051352](https://www.wikidata.org/wiki/Q27051352)  
**Source**: https://4ort.xyz/entity/recommendation-g-117-11-1988-transmission-aspects-of-unbalance-about-earth-definitions-and-methods-