BS-EN-60835-2-9-1997 BS-7573-2.9-1997 IEC-60835-2-9-1995.pdf
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1、BRITISH STANDARD BS EN 60835-2-9:1997 BS 7573-2.9: 1997 IEC 835-2-9: 1995 Methods of measurement for equipment used in digital microwave radio transmission systems Part 2: Measurements on terrestrial radio-relay systems Section 2.9 Service channels The European Standard EN 60835-2-9:1995 has the sta
2、tus of a British Standard ICS 33.060.30 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:41:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60835-2-9:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the author
3、ity of the Standards Board and comes into effect on 15 January 1997 BSI 11-1998 The following BSI references relate to the work on this standard: Committee reference EPL/12/5 Draft for comment 91/29838 DC ISBN 0 580 26392 4 Committees responsible for this British Standard The preparation of this Bri
4、tish Standard was entrusted by Technical Committee EPL/12, Radio communication, to Subcommittee EPL/12/5, Radio communication systems, upon which the following bodies were represented: British Broadcasting Corporation British Radio and Electronic Equipment Manufacturers Association British Telecommu
5、nications plc ERA Technology Ltd. Institution of Electrical Engineers Radio, Electrical and Television Retailers Association Radiocommunications Agency Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:41:20 GMT+00:00 2006, Uncontrolle
6、d Copy, (c) BSI BS EN 60835-2-9:1997 BSI 11-1998i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 60835-2-93 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:41:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
7、BS EN 60835-2-9:1997 ii BSI 11-1998 National foreword This British Standard has been prepared by Subcommittee EPL/12/5 and is the English language version of EN 60835-2-9:1995 Methods of measurement for equipment used in digital microwave radio transmission systems Part 2: Measurements on terrestria
8、l radio-relay systems Section 9: Service channels, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 835-2-9:1995, published by the International Electrotechnical Commission (IEC). BS EN 60835 is published in three Parts. The other Parts are
9、: Part 1: Measurements common to terrestrial radio-relay systems and satellite earth stations. Part 3: Measurements on satellite earth stations. Some of the many Sections of the three Parts have appeared under the number BS 7573, of the same generic title. This Section of BS EN 60835 deals with meas
10、urements pertaining to the service channels used in digital microwave radio-relay systems. Cross-references Publication referred toCorresponding British Standard BS EN 60835 Methods of measurement for equipment used in digital microwave radio transmission systems BS EN 60835-1 Measurements common to
11、 terrestrial radio-relay systems and satellite earth stations EN 60835-1-2:1993BS EN 60835-1-2:1995 Basic characteristics (IEC 835-1-2:1992) EN 60835-1-3:1995BS EN 60835-1-3:19971) Transmission characteristics (IEC 835-1-3:1992) EN 60835-1-4:1995BS EN 60835-1-4:19971) Transmission performance (IEC 8
12、35-1-4:1992) EN 60835-2-4:1995BS EN 60835-2 Measurements on terrestrial radio-relay (IEC 835-2-4:1993)systems BS EN 60835-2-4:19971) Transmitter/receiver including modulator/demodulator A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standa
13、rds are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 14, an inside back cover and a
14、 back cover. This 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. 1) In preparation Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:41:20 GMT+00:00 2006, Uncontrolled Copy, (c)
15、 BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60835-2-9 December 1995 ICS 33.060.30 Descriptors: Telecommunications, radiocommunications, communication equipment, digital technics, radio-relay systems, microwave frequencies, transmission channels, measurements English version Methods of
16、measurement for equipment used in digital microwave radio transmission systems Part 2: Measurements on terrestrial radio-relay systems Section 9: Service channels (IEC 835-2-9:1995) Mthodes de mesure applicables au matriel utilis pour les systmes de transmission numrique en hyperfrquence Partie 2: M
17、esures applicables aux faisceaux hertziens terrestres Section 9: Voies de service (CEI 835-2-9:1995) Meverfahren fr Gerte in digitalen Mikrowellen Funkbertragungssystemen Teil 2: Messungen an terrestrischen Richtfunksystemen Hauptabschnitt 9: Dienstkanle (IEC 835-2-9:1995) This European Standard was
18、 approved by CENELEC on 1995-11-28. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such
19、 national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own la
20、nguage and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
21、 Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1995 Copyright reserved to CENELEC members Ref. N
22、o. EN 60835-3-6:1995 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 09:41:20 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60835-2-9:1995 BSI 11-1998 2 Foreword The text of document 12E/246/DIS, future edition 1 of IEC 835-2-9, prepared by SC 12E, Radio-relay and fixed satellite communicat
23、ion systems, of IEC TC 12, Radiocommunications, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60835-2-9 on 1995-11-28. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. Annexes designated “informative” are given fo
24、r information only. In this standard, annex ZA is normative and annex A is informative. Annex ZA has been added by CENELEC. Contents Page 1General3 1.1Scope3 1.2Normative references3 2Analogue interface of service channels transmitted by analogue techniques3 2.1Return loss3 2.2Input deviation sensit
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