In telecommunication, a maritime broadcast communications net is a communications net[?] that is used for international distress calling, including international lifeboat, lifecraft, and survival-craft high-frequency (HF); aeronautical emergency very high-frequency[?] (VHF); survival ultra high-frequency[?] (UHF); international calling and safety very high-frequency (VHF); combined scene-of-search-and-rescue; and other similar and related purposes.
...
This article is about the country. For other uses see Brazil (disambiguation).
The Federative Republic of Brazil is by far the largest and most populous country ...