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    ITU-R BS.643-4 2022

    system ITU-R 2022 23 PDF 50 0 2026-07-26 14:15
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    ★★★★★ ITU-R TF.535-2 1998 ITU-R TF.535-2 1998 Use of the Term UTC ★★★★★ ITU-R BT.2035 2013 ITU-R BT.2035 2013 A reference viewing environment for evaluation of HDTV program material or completed programmes ★★★★★ ITU-R BO.1516-1 2012 ITU-R BO.1516-1 2012 Digital multiprogramme television systems for use by satellites operating in the 11/12 GHz frequency range ★★★★★ ITU-R SM.1794 2007 ITU-R SM.1794 2007 Wideband instantaneous bandwidth spectrum monitoring systems ★★★★★ ITU-R BO.1297 1997 ITU-R BO.1297 1997 Protection Ratios to be Used for Planning Purposes in the Revision of the Appendices 30 (Orb-85) and 30A (Orb-88) Plans of the Radio Regulations in Regions 1 and 3 ★★★★★ ITU-R REPORT M.2115-1 2009 ITU-R REPORT M.2115-1 2009 Testing procedures for implementation of dynamic frequency selection ★★★★★ ITU-R QUESTION 40-1/6 2010 ITU-R QUESTION 40-1/6 2010 Extremely high-resolution imagery ★★★★★ ITU-R TF.457-2 1997 ITU-R TF.457-2 1997 Use of the Modified Julian Date by the Standard-Frequency and Time-Signal Services ★★★★★ ITU-R BO.712-1 1992 ITU-R BO.712-1 1992 HIGH-QUALITY SOUND/DATA STANDARDS FOR THE BROADCASTING-SATELLITE SERVICE IN THE 12 GHz BAND ★★★★★ ITU-R QUESTION 62-2/5 1990 ITU-R QUESTION 62-2/5 1990 Interference to the aeronautical mobile and aeronautical radionavigation services ★★★★★ ITU-R QUESTION 216/1 1998 ITU-R QUESTION 216/1 1998 Spectrum redeployment as a method of national spectrum management ★★★★★ ITU-R S.446-2 1978 ITU-R S.446-2 1978 Carrier Energy Dispersal for Systems Employing Angle Modulation by Analogue Signals or Digital Modulation in the Fixed-Satellite Service - Section 4C - Earth Station and Baseband Characteristics - Earth Station Antennas - Maintenance of Earth Stations ★★★★★ ITU-R SF.1601-2 2006 ITU-R SF.1601-2 2006 Methodologies for interference evaluation from the downlink of the fixed service using high altitude platform stations to the uplink of the fixed-satellite service using the geostationary satellites within the band 27.5-28.35 GHz - Questions ITU-R 218/9 a ★★★★★ ITU-R REPORT SA.2191 2010 ITU-R REPORT SA.2191 2010 Spectrum requirements for future SRS missions operating under a potential new SRS allocation in the band 22.55-23.15 GHz ★★★★★ ITU-R SF.1650-1 2005 ITU-R SF.1650-1 2005 The minimum distance from the baseline beyond which in-motion earth stations located on board vessels would not cause unacceptable interference to the terrestrial service in the bands 5 925-6 425 MHz and 14-14.5 GHz*,** - Questions ITU-R 226/9 and ITU-R 2