BS-EN-60244-14-1997 IEC-60244-14-1997.pdf
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1、BRITISH STANDARD BS EN 60244-14:1997 IEC 60244-14: 1997 Methods of measurement for radio transmitters Part 14: External intermodulation products caused by two or more transmitters using the same or adjacent antennas The European Standard EN 60244-14:1997 has the status of a British Standard ICS 33.0
2、60.20 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:27:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60244-14:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and come
3、s into effect on 15 October 1997 BSI 09-1999 ISBN 0 580 28440 9 National foreword This British Standard is the English language version of EN 60244-14:1997. It is identical with IEC 60244-14:1997. The UK participation in its preparation was entrusted to Technical Committee EPL/103, Transmitting equi
4、pment for radiocommunication, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Europea
5、n developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a p
6、eriod of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications
7、 with their corresponding or European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Sta
8、ndards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of p
9、ages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 20 and a 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.
10、 Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:27:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60244-14:1997 BSI 09-1999i Contents Page National forewordInside front cover Foreword2 Text of EN 60244-143 Licensed Copy: sheffi
11、eldun sheffieldun, na, Sat Nov 11 12:27:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 12:27:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60244-14 July 1997 ICS 33.060.20 Descriptors:
12、 Radiocommunications, radio equipment, transmitters, measurements, performance evaluation, quality, intermodulation, radio disturbances English version Methods of measurement for radio transmitters Part 14: External intermodulation products caused by two or more transmitters using the same or adjace
13、nt antennas (IEC 60244-14:1997) Mthodes de mesure applicables aux metteurs radiolectriques Partie 14: Produits dintermodulation lextrieur du canal provoqus par deux metteurs ou plus utilisant la mme antenne ou des antennes adjacentes (CEI 60244-14:1997) Meverfahren fr Funksender Teil 14: Externe Int
14、ermodulationsprodukte, verursacht durch zwei oder mehr Sender, welche gleiche oder benachbarte Antennen benutzen (IEC 60244-14:1997) This European Standard was approved by CENELEC on 1997-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditi
15、ons for giving this 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 thre
16、e official versions (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 electrotechnica
17、l committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechni
18、que Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1997 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60244-14:1997 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 1
19、1 12:27:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60244-14:1997 BSI 09-1999 2 Foreword The text of document 103/2/FDIS, future edition 1 of IEC 60244-14, prepared by SC 12C (transformed into IEC TC 103, Transmitting equipment for radiocommunication), was submitted to the IEC-CENELEC parallel
20、vote and was approved by CENELEC as EN 60244-14 on 1997-07-01. The following dates were fixed: Endorsement notice The text of the International Standard IEC 60244-14:1997 was approved by CENELEC as a European Standard without any modification. Contents Page Foreword2 Introduction3 1Scope3 2Normative
21、 references3 3Definitions3 4General measuring procedure4 4.1Introduction4 4.2Measurements in transmitter feeders4 4.3Precautions to be observed when making measurements4 4.4Off-air measurements4 4.5Special precautions to be observed when making off-air measurements5 5Methods of measurement for speci
22、fic transmitter service or configuration5 5.1Measurements for VHF radio transmitters5 5.2Measurements for adjacent antennas5 5.3Measurements for a common antenna5 6Presentation of the results6 Annex A (normative) Theoretical notes13 Annex B (informative) Calculation of radiated levels of intermodula
23、tion products (q = 1)15 Annex C (informative) Maximum permitted power level of spurious emissions16 Figure 1 Measurements in transmitter feeders7 Figure 2 Off-air measurements8 Figure 3 General arrangement for transmitters feeding separate antennas9 Figure 4 General arrangement for transmitters feed
24、ing a single antenna10 Figure 5 Alternative arrangement for transmitters feeding a single antenna11 Figure 6 Typical HF station configurations12 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1998-04-01 late
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