 ITU-R plays a key to ensure radio communications.In its capacity as the unique global radio spectrum manager, ITU-R identifies and harmonizes spectrum for use by wireless broadband systems, ensuring that these valuable frequencies are used efficiently and without interference from other radio systems.Allocates spectrum for communications (including mobile and broadcasting), satellite communications, and spectrum for advanced aeronautical communications, global maritime issues, protect frequencies for Earth-exploration satellites to monitor resources, emergencies, meteorology and climate change.