999 ABC Broken Hill is an ABC Local Radio station based in Broken Hill and broadcasting to the surrounding outback region in New South Wales, including the towns of Menindee, White Cliffs and Silverton.
The station began as 2NB in 1948, originally broadcasting on 760 AM. It now broadcasts on the main AM frequency of 999 kHz along with a low power FM repeater.
Unlike the rest of New South Wales, Broken Hill operates as part of South Australia's ABC Local Radio network, and takes network feeds from 891 ABC Adelaide whenever it isn't producing its own content. This is because Broken Hill is on Central Time, while the rest of New South Wales is on Eastern Time.