ETSI EN 302 054-1-2015 Meteorological Aids (Met Aids) Radiosondes to be used in the 400 15 MHz to 406 MHz frequency range with power levels ranging up to 200 mW Part 1 Technical ch.pdf

1、 ETSI EN 302 054-1 V1.2.1 (2015-10) Meteorological Aids (Met Aids); Radiosondes to be used in the 400,15 MHz to 406 MHz frequency range with power levels ranging up to 200 mW; Part 1: Technical characteristics and test methods EUROPEAN STANDARD ETSI ETSI EN 302 054-1 V1.2.1 (2015-10) 2 Reference REN

2、/ERM-JTFEA-25 Keywords radio, short range, testing, UHF ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Importan

3、t notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written aut

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6、ices: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version sh

7、all not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered f

8、or the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 302 054-1 V1.2.1 (2015-10) 3 Contents Intellectual P

9、roperty Rights 5g3Foreword . 5g3Modal verbs terminology 5g3Introduction 6g31 Scope 7g32 References 7g32.1 Normative references . 7g32.2 Informative references 7g33 Definitions, symbols and abbreviations . 7g33.1 Definitions 7g33.2 Symbols 8g33.3 Abbreviations . 8g34 Technical requirement specificati

10、ons . 8g34.1 Presentation of equipment for testing purposes 8g34.1.1 General Considerations . 8g34.1.2 Choice of model for testing 8g34.1.3 Testing of equipment with alternative power levels . 9g34.1.4 Testing of equipment that does not have an external 50 RF connector (integral antenna equipment) 9

11、g34.1.4.1 Equipment with an internal permanent or temporary antenna connector 9g34.1.4.2 Equipment with an internal permanent antenna 9g34.2 Mechanical and electrical design 9g34.2.1 Marking (equipment identification) 9g34.2.1.1 Equipment identification . 9g34.2.1.2 Marking . 9g34.2.2 Auxiliary test

12、 equipment . 9g35 Test conditions, power sources and ambient temperatures 9g35.1 Normal and extreme test conditions . 9g35.2 Test power source . 10g35.2.1 External test power source 10g35.2.2 Internal test power source . 10g35.3 Normal test conditions 10g35.3.1 Normal temperature and humidity 10g35.

13、3.2 Normal test power source . 10g35.4 Extreme test conditions 10g35.4.1 General 10g35.4.2 Procedure for tests at extreme conditions . 11g35.4.3 Special Radiosondes . 11g35.4.4 Extreme test source voltages . 11g35.4.4.1 Power sources using batteries . 11g35.4.4.2 Other power sources 11g36 General co

14、nditions 12g36.1 Normal test signals and test modulation . 12g36.2 Artificial antenna 12g36.3 Test fixture . 12g36.4 Test sites and general arrangements for radiated measurements 12g36.5 Modes of operation of the transmitter 12g36.6 Measuring receiver . 13g37 Methods of measurement and limits for tr

15、ansmitter parameters 13g37.1 General . 13g37.2 Frequency error 13g37.2.1 Definitions 13g3ETSI ETSI EN 302 054-1 V1.2.1 (2015-10) 4 7.2.2 Method of measurement . 13g37.2.3 Limit . 13g37.3 Carrier power (conducted) 13g37.3.1 Definition 13g37.3.2 Method of measurement . 14g37.3.3 Limits 14g37.4 Effecti

16、ve radiated power 14g37.4.1 Definition 14g37.4.2 Methods of measurement 14g37.4.3 Limit . 15g37.5 Modulation bandwidth . 15g37.5.1 Definition 15g37.5.2 Method of measurement . 15g37.5.3 Limits 16g37.6 Spurious emissions . 16g37.6.1 Definition 16g37.6.2 Methods of measurement 16g37.6.2.0 General requ

17、irement 16g37.6.2.1 Method of measuring the power level in a specified load, clause 7.6.2.0 a) i) 16g37.6.2.2 Method of measuring the effective radiated power, clause 7.6.2.0 a) ii). 17g37.6.2.3 Method of measuring the effective radiated power, clause 7.6.2.0 b) . 17g37.6.3 Limits 18g37.7 Frequency

18、stability under low voltage conditions 18g37.7.1 Definition 18g37.7.2 Method of measurement . 18g37.7.3 Limits 18g3History 19g3ETSI ETSI EN 302 054-1 V1.2.1 (2015-10) 5 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The in

19、formation pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from t

20、he ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or th

21、e updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). For non EU countries the present document may b

22、e used for regulatory (Type Approval) purposes. The present document is part 1 of a multi-part deliverable covering digitally modulated Radiosonde transmitters in the Meteorological Aids frequency band from 400,15 MHz to 406 MHz, as identified below: Part 1: “Technical characteristics and test metho

23、ds“; Part 2: “Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU“. National transposition dates Date of adoption of this EN: 22 October 2015 Date of latest announcement of this EN (doa): 31 January 2016 Date of latest publication of new National Standa

24、rd or endorsement of this EN (dop/e): 31 July 2016 Date of withdrawal of any conflicting National Standard (dow): 31 July 2017 Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted

25、 as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI EN 302 054-1 V1.2.1 (2015-10) 6 Introduction Meteorological aids, Radiosondes, are light w

26、eight, disposable precision measurement instruments mainly used for in situ upper air measurements of meteorological variables (pressure, temperature, relative humidity, wind speed and direction) in the atmosphere up to an altitude of 36 km. The measurements are vital to international weather foreca

27、sting capability (and hence severe weather warning services for the public involving protection of life and property). The Radiosonde systems provide simultaneous measurements of the vertical profile of temperature, relative humidity as well as wind speed and direction. The variation of these meteor

28、ological variables in the vertical contains the majority of the critical information for weather forecasting. These systems are the only meteorological observing systems able to regularly provide the vertical resolution that meteorologists need for all five variables. Typically the Radiosonde observ

29、ations are produced by Radiosondes measuring atmosphere for approximately 2 hours and carried by ascending balloons launched from land stations or ships. Radiosonde observations are carried out routinely by almost all countries, two to four times a day. The observation data is then circulated immedi

30、ately to all other countries within a few hours via the WMO (World Meteorological Organization) Global Telecommunications System (GTS). The observing systems and data dissemination are all organized under the framework of the World Weather Watch Programme of WMO. The observation stations are require

31、d, worldwide, at a horizontal spacing of less than or equal to 250 km, during the first decade of the twenty-first century, with a frequency of observation of from one to four times per day. Remotely sensed measurements from satellites do not have the vertical resolution available from Radiosondes.

32、Successful derivation of vertical temperature structure from these satellite measurements usually requires a computation initialized either directly from Radiosonde statistics or from the numerical weather forecast itself. In the latter case, the Radiosonde measurements ensure that the vertical stru

33、cture in these forecasts remains accurate and stable with time. In addition, the Radiosonde measurements are used to calibrate satellite observations by a variety of techniques. Radiosonde observations are thus seen to remain absolutely necessary for meteorological operations for the foreseeable fut

34、ure. Other applications, independent of the main civilian meteorological organizations include environmental pollution, hydrology, radioactivity in the free atmosphere, significant weather phenomena (e.g. winter storms, thunderstorms, etc.) and investigation of a range of physical and chemical prope

35、rties of the atmosphere. About 150 000 Radiosondes are annually used in Europe, about 90 % of them are in 403 MHz band. This use is not decreasing with time, since with modern automation it is now much easier to successfully operate systems without highly skilled operators and a large amount of supp

36、orting equipment. The Radiosondes use unidirectional transmission on two frequency bands: 403 MHz band covers primary and co-primary allocations from 400,15 MHz to 406 MHz and 1 680 MHz band from 1 668,4 MHz to 1 690 MHz. The 403 MHz Radiosonde technology applies GNSS (Global Navigation Satellite Sy

37、stems) for wind measurement, whereas the 1 680 MHz systems may base the wind measurement on balloon tracking with a Radio Direction Finding antenna. Because the 403 MHz wind measurement depends on the availability of the GNSS signals, many operators do not consider this technology secure enough for

38、critical applications (e.g. defence and national security), and consequently prefer 1 680 MHz systems. National regulatory conditions may apply regarding the, channel/frequency separations, and the inclusion of an automatic transmitter shut-off feature as a condition of an individual or general lice

39、nse, or, as a condition of use under license exemption. The automatic transmitter shut-off facility of the Radiosonde may be based on elapsed time from the beginning of the sounding, or atmospheric pressure or height measured by the Radiosonde. ETSI ETSI EN 302 054-1 V1.2.1 (2015-10) 7 1 Scope The p

40、resent document defines the technical requirements for transmitters used in Radiosondes operating in the range from 400,15 MHz to 406 MHz and with power levels ranging up to 200 mW. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition

41、 number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected locatio

42、n might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. 1 CISPR 16-1-1:

43、 “Specification for radio disturbance and immunity measuring apparatus and methods - Part 1-1: Radio disturbance and immunity measuring apparatus - Measuring apparatus“. 2 ETSI TS 103 052 (V1.1.1) (2011-03): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Radiated measurement method

44、s and general arrangements for test sites up to 100 GHz“. 3 ETSI EN 300 220-1 (V2.4.1) (2012-05): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Radio equipment to be used in the 25 MHz to 1 000 MHz frequency range with power levels ranging up to 500 mW;

45、Part 1: Technical characteristics and test methods“. 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest

46、 version of the reference document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present doc

47、ument but they assist the user with regard to a particular subject area. Not applicable. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: conducted measurements: measurements which are made using a direct 50

48、 connection to the equipment under test dedicated antenna: removable antenna supplied and type tested with the radio equipment, designed as an indispensable part of the equipment integral antenna: permanent fixed antenna, which may be built-in, designed as an indispensable part of the equipment radi

49、ated measurements: measurements which involve the absolute measurement of a radiated field ETSI ETSI EN 302 054-1 V1.2.1 (2015-10) 8 telemetry: use of radio communication for indicating or recording data at a distance 3.2 Symbols For the purposes of the present document, the following symbols apply: dB decibel E Field strength C Temperature in degrees Celsius hPa Atmospheric pressure in hecto Pascal %RH Air relative humidity in percentage Wavelength 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: CISPR International