The government claimed KFM's debate last week could have sparked genocide at a time of extreme tension in Sudan. The station has agreed to be more responsible when covering sensitive issues, the Ugandan Broadcasting Council said.
Meanwhile, journalist Andrew Mwenda, the host for the phone-in show, was charged with sedition and could face five years in prison.
Garang died July 30 in a helicopter crash on his way from talks in Uganda. Mwenda suggested that Ugandan President Yoweri Museveni was partly responsible for the crash.