1、BRITISH STANDARD BS EN 60835-2-1:1994 BS7573-2.1: 1992 IEC835-2-1: 1990 Incorporating Amendment No.1 Methods of measurement for equipment used in digital microwave radio transmission systems Part2: Measurements on terrestrial radio-relay systems Section2.1 General The European Standard EN60835-2-1:1
2、992 has the status of a BritishStandard UDC 621.396.6:629.783:621.317.08BSEN60835-2-1:1994 This BritishStandard, having been prepared under the directionof the Electronic Equipment Standards Policy Committee, was published underthe authority of the Standards Board and comesintoeffect on 1April1992 B
3、SI04-2000 The following BSI references relate to the work on this standard: Committee reference EEL/25 Draft for comment 90/30574 DC ISBN 0 580 20757 9 Committees responsible for this BritishStandard The preparation of this BritishStandard was entrusted by the Electronic Equipment Standards Policy C
4、ommittee (EEL/-) to Technical Committee EEL/25, upon which the following bodies were represented: British Broadcasting Corporation British Radio and Electronic Equipment Manufacturers Association British Telecommunications plc Independent Television Commission Institution of Electrical Engineers Rad
5、io, Electrical and Television Retailers Association Radiocommunications Agency The following bodies were also represented in the drafting of the standard, through subcommittees and panels: EEA (the Association of the Electronics, Telecommunications and Business Equipment Industries) ERA Technology L
6、td. GAMBICA (BEAMA Ltd.) Amendments issued since publication Amd. No. Date Comments 8339 December 1994 Indicated by a sideline in the marginBSEN60835-2-1:1994 BSI 04-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 Text of EN60835-2-1 3 Publication(s) re
7、ferred to Inside back coverBSEN60835-2-1:1994 ii BSI 04-2000 National foreword This Section of BS7573 has been prepared under the direction of the Electronic Equipment Standards Policy Committee. It is identical with IEC835-2-1 “Methods of measurement for equipment used in digital microwave radio tr
8、ansmission systems Part2: Measurements on terrestrial radio-relay systemsSection1: General”, published by the International Electrotechnical Commission (IEC). In1992 the European Committee for Electrotechnical Standardization (CENELEC) accepted IEC835-2-1:1990 as European Standard EN60835-2-1:1992.
9、As a consequence of implementing the European Standard this BritishStandard is renumbered as BS EN60835-2-1 and any reference to BS7573-2.1 should be read as a reference to BS EN60835-2-1. BS7573 is published in three Parts. The other Parts are: Part1: Measurements common to terrestrial radio-relay
10、systems and satellite earth stations; Part3: Measurements on satellite earth stations. This Section of BS7573 is intended to be used in conjunction with BS7573-1.1. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible f
11、or their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference International Standard Corresponding BritishStandard IEC835-1-1:1990 BS7573 Methods of measurement for equipment used in digital microwave radio transmission sy
12、stems Part1 Measurements common to terrestrial radio-relay systems and satellite earth stations Section1.1:1992 General (Identical) Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN title page, pages2 to 4, an inside back cover and a back cover. This
13、standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN60835-2-1 November1992 UDC621.396.6:629.783:621.317.08 Descriptors: Radiocommunications
14、,telecommunications, communication equipment, radio-relay systems, microwave frequencies, measurements, characteristics, general English version Methods of measurement for equipment used in digital microwave radio transmission systems Part2: Measurements on terrestrial radio-relay systems Section1:
15、General (IEC835-2-1:1990) Mthodes de mesure applicables au matriel utilis pour les systmes de transmission numrique en hyperfrquence Deuxime partie: Mesures applicables aux faisceaux hertziens terrestres Section un: Gnralits (CEI835-2-1:1990) Meverfahren fr Gerte in digitalen Mikrowellen-Funkbertrag
16、ungssystemen Teil2: Messungen an terrestrischen Richtfunksystemen Hauptabschnitt eins: Allgemeines (IEC835-2-1:1990) This European Standard was approved by CENELEC on1992-09-15. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving th
17、is European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versio
18、ns (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of A
19、ustria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Ko
20、mitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1992 Copyright reserved to CENELEC members Ref. No. EN60835-2-1:1992 EEN60835-2-1:1992 BSI 04-2000 2 Foreword The CENELEC questionnaire procedure, performed for finding out whether or not the International St
21、andard IEC835-2-1:1990 could be accepted without textual changes, has shown that no common modifications were necessary for the acceptance as a European Standard. The reference document was submitted to the CENELEC members for formal vote and was approved by CENELEC as EN60835-2-1 on15 September1992
22、. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 Annex ZA (normative) Other international publications quoted in this standard with thereferences
23、 of the relevant European publications 4 latest date of publication ofan identical national standard (dop)1993-09-01 latest date of withdrawal ofconflicting national standards (dow)1993-09-01EN60835-2-1:1992 BSI 04-2000 3 1 Scope This part of the standard, which is supplementary to Part1, IEC835-1-1
24、, describes methods of measurement applicable to terrestrial radio-relay systems using digital modulation. The object of this part is to provide recommended methods of measurement for assessing the essential properties of terrestrial radio-relay systems as well as the associated sub-systems and it i
25、s intended to be used in conjunction with Part1, IEC835-1-1. Where measurements common to terrestrial radio-relay and satellite earth station systems are required, reference is made to the appropriate section of Part1, IEC835-1-1. In such cases, only those special aspects of the measurement appropri
26、ate to terrestrial radio-relay systems are described in the sections of this Part2. The measurements described in the following sections of this part are neither mandatory nor limiting; a choice of measurements can be made in each particular case, e.g.,for bit-rates less than about34Mbit/s, the sign
27、ature as well as some of the more sophisticated measurements may not be of interest. On the other hand more comprehensive measurements (under consideration) may be required for complex modulation methods e.g.64-QAM. Where parameters or methods of measurement are applicable only to terrestrial radio-
28、relay systems, they are fully described within the appropriate sections of this part. 2 Normative references The following IEC publication is quoted in this standard: Publication No.835-1-1:1990, Methods of measurement for equipment used in digital microwave radio transmission systems, Part1: Measur
29、ements common to terrestrial radio-relay systems and satellite earth stations. Section1: General.EN60835-2-1:1992 4 BSI 04-2000 Annex ZA (normative) Other international publications quoted in this standard with the references of the relevant European publications When the international publication h
30、as been modified by CENELEC common modifications, indicated by (mod), the relevant EN/HD applies. IEC Publication Date Title EN/HD Date 835-1-1 1990 Methods of measurement for equipment used in digital microwave radio transmission systems Part1: Measurements common to terrestrial radio-relay systems
31、 and satellite earth stations Section1: General EN60835-1-1 1992BSEN60835-2-1:1994 BSI 04-2000 Publication(s) referred to Seenational foreword.BS EN 60835-2-1:1994 BS7573-2.1: 1992 IEC835-2-1: 1990 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent nationa
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