This ITU-T Recommendation defines an RF remodulator interface for digital television with an advanced on-screen display (OSD) overlay capability. This Recommendation defines minimum specifications for a one-way data path utilizing an 8 VSB trellis (8T VSB) or a 16 VSB remodulator in compliance with Annex D/J.83 (System D) (ATSC Standard N53, Annex D). The advanced overlay uses the same OSD syntax as ITU-T J.117 and allows signal service providers their incremental revenue from programme guides and supplemental services. The RF remodulator also facilitates conditional access required by service providers. This Recommendation applies to any type of device used to connect to a J.83 System D compliant digital television receiver. Devices meeting this Recommendation should interoperate with any J. 83 System D compliant receiver that also supports "monitor mode." This Recommendation addresses RF output specifications, on-screen display (OSD) capabilities, and capability profiles for a DTV remodulator and recommendations concerning input to the remodulator. This Recommendation is derived from several standards of the Electronic Industries Alliance (EM).
ITU-T J.151 FRENCH-2000 Referenced Document
ITU-R BT.601-5-1995 Studio Encoding Parameters of Digital Television for Standard 4:3 and Wide-Screen 16:9 Aspect Ratios
ITU-R BT.709-4-2000 Parameter Values for the HDTV Standards for Production and International Programme Exchange
ITU-T J.83-1997 Digital Multi-Programme Systems for Television Sound and Data Services for Cable Distribution - Series J: Transmission of Television, Sound Programme and Other Multimedia Signals Digital Transmission of Television Signals Study Group 9; 66 pp