We have analyzed the frequency sharing in the range of 71-275 GHz, which was adopted as a main topic of the WARC-2000 at the previous conference WARC-97. Though the technology of the active services has not been fully developed in this frequncy range, the heavy usage of this technology is expected in foreseeable future. To protect the passive services from spurious and out-of-band emissions of active services, realignment of the spectrum between 71 GHz and 275 GHz is strongly required. In addition, some effort should be made to allocate special bands for the radio astronomy service.

• 정현수(한국천문연구원 대덕전파천문대) | CHUNG HYUNSOO (Taeduk Radio Astronomy Observatory, Korea Astronomy Observatory)
• 정희창(한국전자통신연구원) | CHUNG HEECHANG (Electronics and Teclecommunications Research Institute)
• 이황재(전파연구소) | RHEE HWANG-JAE (Radio Research Laboratory)
• 배석희(전파연구소) | BAE SEOK-HEE (Radio Research Laboratory)
• 강상선(정보통신부) | KANG SANG-SUN (Ministry of Information and Communication)
• 정애리(연세대학교 천문학과) | CHUNG AEREE (Department of Astronomy, Yonsei University)
• 한석태(한국천문연구원 대덕전파천문대) | HAN SEOG-TAE (Taeduk Radio Astronomy Observatory, Korea Astronomy Observatory)