Currently popular music in the region from where the radio is broadcasting is played mostly. Los Empecherados is probably one of those radios which highly puts their emphasis on various kinds of local and cultural basically regional music for their daily regular radio programs.
Los Empecherados official website address is www.losempecherados.wordpress.com
If the Radio is extremely choppy and stops every 5 seconds, try listen to this Radio at different time.
Not all Radio Stations function for 24 hours everyday. If you can't listen to any Radio, try to listen at different time, as the Radio Station may stop during midnight according to its own country time zone.