WWUS covers the lower and middle Keys, and reaches the coast of Cuba near Havana. WWUS has a sister station (WCNK, 98.7 MHz, 100 kW) that plays contemporary country music and broadcasts also with 100 kW of power. These stations are also family of WAVK from Marathon Key, part of Gamma Broadcasting, LLC.
Originally, US-1 Radio had its signal on 104.7 FM and broadcast with much lower power. Now it is one of the most powerful stations in the Florida Keys and a reference for news and hurricane warnings for sailors and citizens of the Keys.
In August 2013, Gamma Broadcasting reached a deal to sell its Florida Keys stations (including WWUS) to Florida Keys Media (a company controlled by Robert H. Holladay).