International communication is covered, with emphasis on shortwave radio. Hauser is an internationally-known American DXer and radio host from Enid, Oklahoma. He produces and presents a weekly 30-minute program, "World Of Radio," heard on a number of non-commercial AM and FM stations throughout the U.S. and worldwide on shortwave. Hauser began his broadcasting career on Radio Canada International during the late 1970s, providing DX tips on Sunday nights, and his tips also appeared on Radio Nederland's DX Juke Box program. He wrote for Popular Electronics and Modern Electronics, and published Review of International Broadcasting.