2nd, 4th Tuesdays from 7-10pm on KAZI 88.7 FM in Austin, TX
You can find the full schedule on the SxSW reggae page. Big thanks to SxSW for their continued support of reggae and Caribbean music.
This is going to be another great festival this year. Hope you can make it out. More info on their website: http://www.austinreggaefest.com