SIST EN 302 054-2 V1.2.1:2016

• Abstract:

  The present document applies to Radiosondes in the Meteorological Aids service to be used in the 400,15 MHz to; 406 MHz frequency range with power levels ranging up to 200 mW.; The present document contains requirements to demonstrate that "... Radio equipment shall be so constructed that it; both effectively uses and supports the efficient use of radio spectrum in order to avoid harmful interference" [i.1].

• Status: Published
• Publication Date: 06-Jan-2016
• ICS: 07.060 - Geology. Meteorology. Hydrology
• ICS: 33.060.99 - Other equipment for radiocommunications
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 04-Nov-2015
• Due Date: 09-Jan-2016
• Completion Date: 07-Jan-2016
• Directive: 1999/5/EC - Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity
  OJ Date: 13-Jan-2017
• Directive:

  ---

  2005-01-1864 - Pravilnik o radijskih frekvencah, ki se smejo uporabljati brez odločbe o dodelitvi radijskih frekvenc
• Directive:

  ---

  2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Ref Project: ETSI EN 302 054-2 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 2: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU

Overview

SIST EN 302 054-2 V1.2.1:2016 is a harmonised European standard focused on radiosondes used in meteorological aids that operate within the 400.15 MHz to 406 MHz frequency range and with power levels up to 200 mW. The standard was prepared by the Slovenski inštitut za standardizacijo (SIST) and is identical to EN 302 054-2 V1.2.1 by ETSI. It specifically addresses the essential requirements laid out in Article 3.2 of Directive 2014/53/EU (Radio Equipment Directive).

This standard provides technical requirements and test specifications to demonstrate that radiosondes efficiently use the radio spectrum while avoiding harmful interference, thereby ensuring reliable meteorological data collection and legal compliance for equipment manufacturers and users.

Key Topics

• Essential Requirements: Covers Article 3.2 of Directive 2014/53/EU, focusing on efficient spectrum usage and prevention of radio interference.
• Technical Requirements for Radiosondes:
  • Frequency error limitations
  • Maximum conducted and radiated power
  • Modulation bandwidth constraints
  • Spurious emissions limits
  • Frequency stability under low-voltage conditions
• Testing and Compliance: Specifies test conditions, measurement uncertainty, and the necessary radio test suites to verify compliance.
• Environmental Profile: Ensures equipment functions correctly within the defined environmental boundary limits provided by the supplier.

Applications

Radiosondes are critical instruments for meteorological observation, providing valuable atmospheric data such as temperature, humidity, and pressure profiles. This standard is primarily applied to:

• Meteorological Services: For routine atmospheric soundings, weather forecasting, and climate observation.
• Radiosonde Manufacturers: Ensures new or upgraded devices comply with EU regulatory and spectrum management requirements.
• Testing Laboratories: For standardized testing and certification of radiosonde equipment, guaranteeing interoperability and electromagnetic compatibility.
• Regulatory Compliance: Assists organizations in meeting mandatory obligations under EU radio equipment directives to market and operate radiosondes legally within the designated UHF frequency range.

Related Standards

• SIST EN 302 054-1: Specifies technical characteristics and test methods for radiosondes in the same frequency band, complementing the requirements of Part 2.
• Directive 2014/53/EU (Radio Equipment Directive): EU legislation outlining essential requirements for radio equipment, including spectrum efficiency and avoidance of interference.
• ETSI TR 100 028: Guide for uncertainties in the measurement of mobile radio equipment characteristics.

Practical Value

Applying SIST EN 302 054-2 V1.2.1:2016 ensures that radiosonde devices:

• Conform to EU Regulations: Granting a presumption of conformity for market access under the Radio Equipment Directive.
• Avoid Harmful Interference: Protect meteorological, scientific, and other radio services sharing adjacent spectrum bands.
• Support Efficient Spectrum Use: Promoting sustainable, interference-free operation of meteorological aids.
• Streamline Certification: Facilitates easier certification and acceptance of radiosonde equipment across EU and EFTA markets.

By complying with this harmonised standard, organizations help maintain high data quality for weather prediction and climate monitoring, while ensuring regulatory and operational integrity.

Draft ETSI EN 302 054-2 V1.2.0 (2015-06)

HARMONISED EUROPEAN STANDARD
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 2: Harmonised Standard covering the essential
requirements of article 3.2 of the Directive 2014/53/EU

2 Draft ETSI EN 302 054-2 V1.2.0 (2015-06)

Reference
REN/ERM-JTFEA-26
Keywords
radio, regulation, short range, testing, UHF
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88

Important 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 authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the
print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
Information on the current status of this and other ETSI documents is available at
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
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 shall 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.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP 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
3 Draft ETSI EN 302 054-2 V1.2.0 (2015-06)
Contents
Intellectual Property Rights . 4
Foreword . 4
Modal verbs terminology . 4
Executive summary . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions, symbols and abbreviations . 6
3.1 Definitions . 6
3.2 Symbols . 6
3.3 Abbreviations . 7
4 Technical requirements specifications . 7
4.1 Environmental profile . 7
4.2 Conformance requirements . 7
4.2.1 Transmitter requirements . 7
4.2.1.1 Frequency error . 7
4.2.1.2 Carrier power (conducted) . 7
4.2.1.3 Effective radiated power . 7
4.2.1.4 Modulation bandwidth . 7
4.2.1.5 Spurious emissions . 7
4.2.1.6 Frequency stability under low-voltage conditions . 7
5 Testing for compliance with technical requirements . 8
5.1 Environmental conditions for testing . 8
5.1.1 Normal and extreme test-conditions . 8
5.1.2 Test power source . 8
5.2 Interpretation of the measurement results . 8
5.3 Radio test suites . 8
5.3.1 Transmitter test specifications . 8
5.3.1.1 Frequency error . 8
5.3.1.2 Carrier power (conducted) . 8
5.3.1.3 Effective radiated power . 9
5.3.1.4 Modulation bandwidth . 9
5.3.1.5 Spurious emissions . 9
5.3.1.6 Frequency stability under low-voltage conditions . 9
Annex A (normative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 10
History . 11

ETSI
4 Draft ETSI EN 302 054-2 V1.2.0 (2015-06)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
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 the 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 the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This draft Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM), and is now submitted for the combined Public Enquiry and Vote
phase of the ETSI standards EN Approval Procedure.
The present document has been prepared to provide a means of conforming to the essential requirements of Directive
2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the
Member States relating to the making available on the market of radio equipment and repealing Directive
1999/5/EC [i.1].
NOTE: The corresponding Commission's standardization request is expected shortly.
Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with
the normative clauses of the present document given in table A.1 confers, within the limits of the scope of the present
document, a presumption of conformity with the corresponding essential requirements of that Directive, and associated
EFTA regulations.
The present document is part 2 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 methods";
Part 2: "Harmonised Standard covering the essential requirements of article 3.2 of the Directive
2014/53/EU".
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

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 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
5 Draft
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.YHQþQHP(8Meteorological 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 2: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunications07.060Geologija. Meteorologija. HidrologijaGeology. Meteorology. HydrologyICS:Ta slovenski standard je istoveten z:EN 302 054-2 V1.2.1SIST EN 302 054-2 V1.2.1:2016en,fr,de01-februar-2016SIST EN 302 054-2 V1.2.1:2016SLOVENSKI
STANDARD
HARMONISED EUROPEAN STANDARD SIST EN 302 054-2 V1.2.1:2016

ETSI ETSI EN 302 054-2 V1.2.1 (2015-10) 2
Reference REN/ERM-JTFEA-26 Keywords radio, regulation, short range, testing, UHF ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: [phone]
Fax: [phone]
Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88
Important 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 authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: 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 shall 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, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for 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. SIST EN 302 054-2 V1.2.1:2016

ETSI ETSI EN 302 054-2 V1.2.1 (2015-10) 3 Contents Intellectual Property Rights . 4 Foreword . 4 Modal verbs terminology . 4 Executive summary . 5 1 Scope . 6 2 References . 6 2.1 Normative references . 6 2.2 Informative references . 6 3 Definitions, symbols and abbreviations . 6 3.1 Definitions . 6 3.2 Symbols . 6 3.3 Abbreviations . 7 4 Technical requirements specifications . 7 4.1 Environmental profile . 7 4.2 Conformance requirements . 7 4.2.1 Transmitter requirements . 7 4.2.1.1 Frequency error . 7 4.2.1.2 Carrier power (conducted) . 7 4.2.1.3 Effective radiated power . 7 4.2.1.4 Modulation bandwidth . 7 4.2.1.5 Spurious emissions . 7 4.2.1.6 Frequency stability under low-voltage conditions . 7 5 Testing for compliance with technical requirements . 8 5.1 Environmental conditions for testing . 8 5.1.1 Normal and extreme test-conditions . 8 5.1.2 Test power source . 8 5.2 Interpretation of the measurement results . 8 5.3 Radio test suites . 8 5.3.1 Transmitter test specifications . 8 5.3.1.1 Frequency error . 8 5.3.1.2 Carrier power (conducted) . 8 5.3.1.3 Effective radiated power . 9 5.3.1.4 Modulation bandwidth . 9 5.3.1.5 Spurious emissions . 9 5.3.1.6 Frequency stability under low-voltage conditions . 9 Annex A (normative): Relationship between the present document and the essential requirements of Directive 2014/53/EU . 10 History . 11
ETSI ETSI EN 302 054-2 V1.2.1 (2015-10) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information 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 the 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 the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Harmonised European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document has been prepared in reply to the Commission's standardisation request Commission Implementing Decision C(2015) 5376 final of 04.08.2015 to provide a means of conforming to the essential requirements of Directive 2014/53/EU on "the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment" - also known as the Radio Equipment Directive [i.1]. Once the present document is cited in the Official Journal of the European Union under that Directive, compliance with the normative clauses of the present document given in table A.1 confers, within the limits of the scope of the present document, a presumption of conformity with the corresponding essential requirements of that Directive, and associated EFTA regulations. The present document is part 2 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 methods"; 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 Standard 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 documen
...