FM 92.50 MHz Radio Thailand World Service began its outside dialect benefits under the call-sign HSK-9 on the twentieth of October 1938
Radio Thailand World Service now transmits signals by means of satellite to Udon Thani Relay Station in 10 dialects Thai, English, German, Japanese, Chinese, Bahasa Malaysia,Lao,Khmer,Burmese and Vietnamese
FM 92.50 MHz official website address is hsk9.org