1530-166005mhz频段频谱资源评估

JAYS.LEVY U.S.DEPARTMENTOFCOMMERCEMaicolm Baldrige, Secretary DavidJ.Markey,Assistant SecretaryforCommunicationsand Information SEPTEMBER1984 TABLE OF CONTENTS ABSTRACTKEY WORDS.V1 SECTION 1INTRODUCTION BACKGROUND.OBJECTIVES.2APPROACH。2 SECTION2CONCLUSIONS AND RECOMMENDATIONS GENERAL.33CONCLUSIONSRECOMMENDATIONS.4 SECTION 3RULESAND REGULATIONS ALLOCATIONS.6TECHNICAL STANDARDS13 SECTION4^ MAJOR SYSTEMS AND SPECTRUM OCCUPANCY GENERAL.151530-1535MHzMAJORSYSTEMS.For data through Decembe1535-1544MHzMAJORSYSTEMS.151544-1545MHzMAJORSYSTEMS.NETWORKEDNATION:BRO1545-1559MHZMAJOR SYSTEMS..211559-1610MHzMAJORSYSTEMS.States.InOctober2007,theC1610-1626.5MHzMAJORSYSTEMS.Table2:Percentageof Zip C1626.5-1645.5 MHz MAJOR SYSTEMS.241645.5--1646.5MHzMAJORSYSTEMS.25SUMMARY OF DISTRESS AND SAFETY SYSTEMSIN THE1530-1660.5MHzBANDS.281646.5-1660 MHz MAJORSYSTEMS.281660-1660.5MHzMAJ0RSYSTEMS.NATIONALTELECOMMUNIOTHER SYSTEMS (GLONASS AND VOLNA)32FUTURESYSTEMS.and morethan50percent oSPECTRUM OCCUPANCY35 Allocation Table7Footnotes to the Allocation Table.6Tolerances on Spurious Emissions.14Typical Telemetry Link Budget..16INMARSAT Space Segment Deployment Plans.18INMARSAT Satellite Transponder Frequency Bands.19CoSPAS-SARSAT Spacecraft Technical Parameters..22Interference Thresholds for Civil-Use Gps Receiver23Radar Altimeter Characteristics.26INMARSAT Based SAMSARS Power Budget EPIRB-to-INMARSAT Link...29Summary of Distress and Safety Systems in the1530-1660.5Bands... 30Summary of U.S. Radio Astronomy Observatories Using the1610.6-1613.8 and 1660-1660.5 MHz From C0RF (1983)..31Radar Altimeter Reception Distance..38Summary of GMF Assignments by Band (Post-WARC-79 Bands)44Summary of GMF Assignments (Pre-WARC-79 Bands).45Radar Altimeter Units..46 LISTOF ILLUSTRATIONS Figure Spectrum Occupancy of Major SystemsExample of Spectrum Occupany Measurements during the EwcAsExercise in 1558.5-1636 MHz Band (F-4 aircraft flyingover RSMS Van) showing spectrum of AN/APN-155radar altimeter.......Measurements from San Pedro Hill taken September 25,Measurements from San Pedro Hi11 taken January 27, 1981,signal at1640MHz..42Measurements from San Pedro Hill taken January 27, 1981,signal at1645MHz.43Interaction Matrix48 Spectrum Resource.Assessment KEY.WORDS ABSTRACT SECTION1 INTRODUCTION BACKGROUND The National Telecommunications and Information Administration (NTIA) isresponsibleformanagingtheradiospectrumusedbytheU.s.FederalGovernment. Part of NTIA's responsibility is to: n...establish policies concerning spectrum assignment, allocation and use,and. provide the various departments and agencies with guidance to assurethat their conduct of telecommunications activities is consistent withthese policies" [Department of Commerce, 1978]. In support of these requirements,NTIAhasundertakena number of spectrunresourceassessments.The objectives of these studies are to assess spectrunutilization, identify existing and/or potential compatibilityproblems betweensystems of various departments and agencies, provide recommendations forresolving any compatibility conflicts,and recommend changes to improve theefficient use of the radio spectrum and improve spectrun management procedures.This spectrum resource assessment considers the 1530-1660.5 MHz frequencyband.The report is based on information available through March, 1983. TheWorldAdministrativeRadioConference,Geneva1979，(WARC-79)significantlychanged the international allocations in the 1530-1660.5MHz bandwhich resulted in changes to the National Table of Frequency Allocations.Themajor changes are: 1.There are now ten bands. Prior to the WARC-79 there were nine. 2.The frequency ranges of all sub-bands have been changed. 3.AnallocationfortheRadionavigation-SatelliteService(Space-to-Earth)has been added. 4.TheallocationfortheMeteorological Aids Service (radiosonde)hasbeen eliminated. 5. AllocationshavebeenaddedfortheMobile-SatelliteService(Space-to-Earth)andfortheMobile-SatelliteService (Earth-to-space).Each of theseservicesisallocatedtoabandoneMHzwide.Inconjunctionwiththis,Footnote 728 has been added which states that theuse of the bands1544-1545MHz(Space-to-Earth)and1645.5-1646.5MHz(Earth-to-space)bytheMobile-SateiliteServiceislimited to distressand safety operations. Appendixcgivesabriefhistoryofthebandsfrom1535-1660MHzupto1974. was measured with the RsMs van. The analyses of these measurements wereincorporated in the spectrum resourceassessment(SRA)onthisband,appropriate.6.Potential interactions involving major systemspresently operating in,or firmly planned for, the band were identified.7. Problem areas that affect the management of the 1530-1660.5 MHz bandwere identified and recommendations made toward their solution. 4. The general impact of wARC-79 on specific systems in the bandwasreviewed. this band were reviewed. 1.The Government Master File (GMF) and other existing files were reviewed. In order to accomplishthe above objectives, the following approach was 5. Review t