Ko Kha 
Royal Thai Air Station

Ko Kha is on the Bangkok-Chiengmai railway and at the junction of highways to Chieng Mai and Chiang Rai. A small Royal Thai Air Station was the location of a radar station for the Spacetrack System. The station tracked People’s Republic of China missile launches and southerly launches from the Soviet Union from Sep 1971–May 1976. No Security Police military working dogs were ever assigned. 

Lt Colonel (Retired) John Rybczk reported that drug detector dogs from U-Tapao were assigned to search outgoing baggage and equipment as the base was closed.