ETSI EN 303 084 V2.1.1 (2016-08)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QL]LUDQL(8Ground Based Augmentation System (GBAS) VHF ground-air Data Broadcast (VDB) - Technical characteristics and methods of measurement for ground-based equipment - Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU49.090On-board equipment and instruments33.060.01Radijske komunikacije na splošnoRadiocommunications in generalICS:Ta slovenski standard je istoveten z:ETSI EN 303 084 V2.1.1 (2016-08)SIST EN 303 084 V2.1.1:2016en01-oktober-2016SIST EN 303 084 V2.1.1:2016SLOVENSKI

ETSI EN 303 084 V2.1.1 (2016-08) Ground Based Augmentation System (GBAS) VHF ground-air Data Broadcast (VDB); Technical characteristics and methods of measurement for ground-based equipment; Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU

Reference REN/ERM-JTFEA-19 Keywords aeronautical, AM, DSB, harmonised standard, radio, testing, VHF ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE

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 https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx 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.

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 303 084 V2.1.1:2016

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 3 Contents Intellectual Property Rights ................................................................................................................................ 5 Foreword ............................................................................................................................................................. 5 Modal verbs terminology .................................................................................................................................... 5 Executive Summary ............................................................................................................................................ 6 Introduction ........................................................................................................................................................ 6 1 Scope ........................................................................................................................................................ 7 2 References ................................................................................................................................................ 7 2.1 Normative references ......................................................................................................................................... 7 2.2 Informative references ........................................................................................................................................ 7 3 Definitions and abbreviations ................................................................................................................... 8 3.1 Definitions .......................................................................................................................................................... 8 3.2 Abbreviations ..................................................................................................................................................... 9 4 Technical requirements specifications ................................................................................................... 10 4.1 Environmental profile ....................................................................................................................................... 10 4.2 Conformance requirements .............................................................................................................................. 10 4.2.1 Transmitter requirements ............................................................................................................................ 10 4.2.1.0 Applicability.......................................................................................................................................... 10 4.2.1.1 Frequency error ..................................................................................................................................... 10 4.2.1.1.1 Requirement .................................................................................................................................... 10 4.2.1.1.2 Conformance ................................................................................................................................... 10 4.2.1.2 Transmitter power ................................................................................................................................. 11 4.2.1.2.1 Requirement .................................................................................................................................... 11 4.2.1.2.2 Conformance ................................................................................................................................... 11 4.2.1.3 Adjacent channel power ........................................................................................................................ 11 4.2.1.3.1 Requirement .................................................................................................................................... 11 4.2.1.3.2 Conformance ................................................................................................................................... 12 4.2.1.4 Spurious emissions ................................................................................................................................ 13 4.2.1.4.1 Conducted emissions ....................................................................................................................... 13 4.2.1.4.2 Radiated emissions - cabinet radiation ............................................................................................ 15 4.2.1.5 Intermodulation attenuation .................................................................................................................. 15 4.2.1.5.1 Requirements ................................................................................................................................... 15 4.2.1.5.2 Conformance ................................................................................................................................... 15 4.2.1.6 Transient behaviour of the transmitter .................................................................................................. 15 4.2.1.6.1 RF power rise time .......................................................................................................................... 15 4.2.1.6.2 RF power release time ..................................................................................................................... 17 4.2.1.7 Modulation Accuracy - Symbol constellation error .............................................................................. 17 4.2.1.7.1 Requirement .................................................................................................................................... 17 4.2.1.7.2 Conformance ................................................................................................................................... 17 4.2.1.8 Emissions in unassigned time slots ....................................................................................................... 18 4.2.1.8.1 Requirement .................................................................................................................................... 18 4.2.1.8.2 Conformance ................................................................................................................................... 18 4.2.2 Receiver requirements ................................................................................................................................ 19 4.2.2.1 Applicability.......................................................................................................................................... 19 4.2.2.2 Sensitivity ............................................................................................................................................. 19 4.2.2.2.1 Requirements ................................................................................................................................... 19 4.2.2.2.2 Conformance ................................................................................................................................... 20 4.2.2.3 Symbol rate capture range ..................................................................................................................... 20 4.2.2.3.1 Requirements ................................................................................................................................... 20 4.2.2.3.2 Conformance ................................................................................................................................... 21 4.2.2.4 Co-channel rejection ............................................................................................................................. 21 4.2.2.4.1 Requirements ................................................................................................................................... 21 4.2.2.4.2 Conformance ................................................................................................................................... 22 4.2.2.5 Adjacent Channel selectivity ................................................................................................................. 23 SIST EN 303 084 V2.1.1:2016

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 4 4.2.2.5.1 Requirements ................................................................................................................................... 23 4.2.2.5.2 Conformance ................................................................................................................................... 25 4.2.2.6 Spurious response rejection ................................................................................................................... 27 4.2.2.6.1 Requirements ................................................................................................................................... 27 4.2.2.6.2 Conformance ................................................................................................................................... 28 4.2.2.7 Spurious emissions ................................................................................................................................ 29 4.2.2.7.1 Conducted spurious emission .......................................................................................................... 29 4.2.2.7.2 Cabinet radiation ............................................................................................................................. 30 4.2.2.8 Out-of-band Intermodulation ................................................................................................................ 30 4.2.2.8.1 Requirements ................................................................................................................................... 30 4.2.2.8.2 Conformance ................................................................................................................................... 31 5 General test conditions for compliance with technical requirements ..................................................... 32 5.1 Environmental conditions for testing ............................................................................................................... 32 5.1.0 General Requirements ................................................................................................................................. 32 5.1.1 Normal and extreme test conditions............................................................................................................ 32 5.1.1.0 General .................................................................................................................................................. 32 5.1.1.1 Normal temperature and humidity ........................................................................................................ 32 5.1.1.2 Normal power sources ........................................................................................................................... 33 5.1.1.2.1 Mains voltage and frequency ........................................................................................................... 33 5.1.1.2.2 Other power sources ........................................................................................................................ 33 5.1.2 Extreme test conditions ............................................................................................................................... 33 5.1.2.1 Extreme temperatures ............................................................................................................................ 33 5.1.2.2 Procedure for tests at extreme temperatures .......................................................................................... 33 5.1.2.2.1 General ............................................................................................................................................ 33 5.1.2.2.2 Low temperature .............................................................................................................................. 33 5.1.2.3 Extreme values of test power sources ................................................................................................... 34 5.1.2.4 Other power sources .............................................................................................................................. 34 5.1.3 Test power source ....................................................................................................................................... 34 5.2 Interpretation of the measurement results ........................................................................................................ 34 Annex A (normative): Relationship between the present document and the essential requirements of Directive 2014/53/EU ......................................................... 36 Annex B (informative): Bibliography ................................................................................................... 38 History .............................................................................................................................................................. 39

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 5 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 (https://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 under the Commission's standardisation request C(2015) 5376 final [i.7] to provide one voluntary 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 and repealing Directive 1999/5/EC [i.1]. The present document provides the technical procedures and limits for compliance with article 3.2 of the Directive 2014/53/EU [i.1] for VHF ground-air digital broadcast of Ground-Based Augmentation System (GBAS). 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.

National transposition dates Date of adoption of this EN: 2 August 2016 Date of latest announcement of this EN (doa): 30 November 2016 Date of latest publication of new National Standard or endorsement of this EN (dop/e):

31 May 2017 Date of withdrawal of any conflicting National Standard (dow): 31 May 2018

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. SIST EN 303 084 V2.1.1:2016

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 6 Executive Summary The present document applies to VDB ground-air digital broadcast using Differential Eight Phase Shift Keying (D8PSK) of Ground-Based Augmentation System GBAS, intended for channel increments of 25 kHz. The VDB system provides data broadcast from ground based to aircraft systems, operating in the VHF band (108,000 MHz to 117,975 MHz). The scope of the present document is limited to ground based stations and is restricted to the civil use of GBAS with horizontally polarized signals (GBAS/H). Introduction The present document states the technical specifications for ground-based equipment implementing Very High Frequency (VHF) Data Broadcast (VDB) air interface, operating in the VHF band (108,000 MHz to 117,975 MHz) in increments of 25 kHz. NOTE: In ICAO Annex 10, Vol. 1 [2], clause 7.2.3 in attachment D it is stated: "...Until compatibility criteria are developed for GBAS VDB and ILS, VDB cannot be assigned to channels below 112.025 MHz."

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 7 1 Scope The present document applies to VDB ground-air digital broadcast using Differential Eight Phase Shift Keying (D8PSK) of Ground-Based Augmentation System GBAS, intended for channel increments of 25 kHz. The VDB system provides data broadcast from ground based to aircraft systems, operating in the VHF band (108,000 MHz to 117,975 MHz). The scope of the present document is limited to ground based stations and is restricted to the civil use of GBAS with horizontally polarized signals (GBAS/H). 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]. In addition to the present document, other ENs that specify technical requirements in respect of essential requirements under other parts of article 3 of the Radio Equipment Directive [i.1] as well as essential requirements under the SES Interoperability Regulation 552/2004 [i.2] and related implementing rules and/or essential requirements under the EASA basic Regulation (EC) No 216/2008 [i.5] and Regulation (EC) No 1108/2009 [i.6] may apply to equipment within the scope of the present document. 2 References 2.1 Normative 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 version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location 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] ETSI EN 300 113-1 (V1.7.1) (11-2011): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Land mobile service; Radio equipment intended for the transmission of data (and/or speech) using constant or non-constant envelope modulation and having an antenna connector; Part 1: Technical characteristics and methods of measurement". [2] ICAO Annex 10: "Aeronautical Telecommunications", Vol. I, November 2014. 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 version of the referenced 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 document but they assist the user with regard to a particular subject area. [i.1] 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. SIST EN 303 084 V2.1.1:2016

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 8 [i.2] Regulation (EC) 552/2004 of the European Parliament and Council of 10 March 2004 on the interoperability of the European Air Traffic Management network (the interoperability Regulation). OJ L96, 31.03.2004, p. 26 as amended by Regulation EC No 1070/2009, OJ L 300, 14/11/2009, p. 34. [i.3] ETSI TR 100 028-1 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics; Part 1". [i.4] ETSI TR 100 028-2 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics; Part 2". [i.5] Regulation (EC) No 216/2008 of the European Parliament and of the Council of 20 February 2008 on common rules in the field of civil aviation and establishing a European Aviation Safety Agency, and repealing Council Directive 91/670/EEC, Regulation (EC) No 1592/2002 and Directive 2004/36/EC. [i.6] Regulation (EC) No 1108/2009 of the European Parliament and of the Council of 21 October 2009 amending Regulation (EC) No 216/2008 in the field of aerodromes, air traffic management and air navigation services and repealing Directive 2006/23/EC. [i.7] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request to the European Committee for Electrotechnical Standardisation and to the European Telecommunications Standards Institute as regards radio equipment in support of Directive 2014/53/EU of the European Parliament and of the Council. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in the Radio Equipment Directive [i.1] and the following apply: adjacent channel power: amount of the modulated RF signal power transmitted outside of the assigned channel NOTE: Adjacent channel power includes discrete spurious, signal sidebands and noise density (including phase noise) at the transmitter output. adjacent channel rejection: receiver's ability to demodulate the desired signal and meet the uncorrected BER requirement in the presence of an interfering signal in an adjacent channel NOTE: The ratio (in dB) between the adjacent interfering signal level and the desired signal level necessary to achieve the specified minimum uncorrected BER, is the Adjacent Channel Rejection (ACR) ratio. Aeronautical Mobile Route Service (AM(R)S): mobile service between ground based stations and airborne stations, in which survival craft stations may participate average transmitter output power: average power supplied to the antenna transmission line by a transmitter during an interval of time sufficiently long, compared with the lowest frequency encountered in the modulation, taken under normal operating conditions Bit Error Rate (BER): ratio between the number of erroneous bits received and the total number of bits received NOTE: The uncorrected BER represents the BER without the benefit of Forward Error Correction (FEC). Co-Channel Interference (CCI): capability of a receiver to demodulate the desired signal and achieve the minimum specified BER performance in the presence of an unwanted signal at the same assigned channel NOTE: The ratio (in dB) between the wanted signal level and the unwanted signal level is the co-channel interference ratio. conducted measurements: measurements which are made using a direct RF connection to the equipment under test SIST EN 303 084 V2.1.1:2016

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 9 data rate: with a nominal data rate of 31 500 bits/s, the VDB symbol rate is expected to be 10 500 symbols/s environmental profile: range of environmental conditions under which equipment within the scope of the present document is required to comply with the provisions of the present document ground based station: aeronautical station equipment, in the Aeronautical Mobile Route Service (AM(R)S), for use with an external antenna and intended for use at a fixed location radiated measurements: measurements which involve the measurement of a radiated field spurious emissions: conducted RF emissions on a frequency or frequencies which are outside the necessary bandwidth and the level of which may be reduced without affecting the corresponding transmission of information NOTE: Spurious emissions include parasitic emissions, intermodulation products and frequency conversion products. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AC Alternating Current ACR Adjacent Channel Rejection AGC Automatic Gain Control AM Amplitude Modulation AM(R)S Aeronautical Mobile (Route) Service BER Bit Error Rate CCI Co-Channel Interference CW Continuous Wave D8PSK Differential Eight Phase Shift Keying DSB Double Side Band EASA European Aviation Safety Agency EC European Commission EFTA European Free Trade Association EU European Union EVM Error Vector Magnitude FC Frequency Counter FEC Forward Error Correction FM Frequency Modulation GBAS Ground Based Augmentation System ICAO International Civil Aviation Organization ILS Instrument Landing System MFR Message Failure Rate PC Personal Computer PPS Pulse Per Second RBW Resolution BandWidth RF Radio Frequency RMS Root Mean Square SA Spectrum Analyser SES Single European Sky SWT Sweep Time TUT Transmitter Under Test VBW Video BandWidth VDB VHF Data Broadcast VHF Very High Frequency VSA Vector Signal Analyser SIST EN 303 084 V2.1.1:2016

ETSI ETSI EN 303 084 V2.1.1 (2016-08) 10 4 Technical requirements specifications 4.1 Environmental profile The technical requirements of the present document apply under the environmental profile for operation of the equipment, which shall be declared by the supplier. The equipment shall comply with all the technical requirements of the present document at all times when operating within the boundary limits of the declared operational environmental profile. 4.2 Conformance requirements 4.2.1 Transmitter requirements 4.2.1.0 Applicability All the technical requirements in clause 4.2.1 shall only be applicable for equipment containing a transmitter. 4.2.1.1 Frequency error 4.2.1.1.1 Requirement The frequency of the RF carrier shall be within

Final draft ETSI EN 303 084 V2.1.0 (2016-06)
HARMONISED EUROPEAN STANDARD
Ground Based Augmentation System (GBAS)
VHF ground-air Data Broadcast (VDB);
Technical characteristics and methods of measurement
for ground-based equipment;
Harmonised Standard covering the essential requirements
of article 3.2 of the Directive 2014/53/EU
---------------------- Page: 1 ----------------------
2 Final draft ETSI EN 303 084 V2.1.0 (2016-06)
Reference
REN/ERM-JTFEA-19
Keywords
aeronautical, AM, DSB, radio, testing, VHF
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 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

If you find errors in the present document, please send your comment to one of the following services:

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying

The content of the PDF version shall not be modified without the written authorization of ETSI.

DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.

3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and

GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.

Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 5

Executive Summary ............................................................................................................................................ 5

Introduction ........................................................................................................................................................ 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definitions and abbreviations ................................................................................................................... 8

3.1 Definitions .......................................................................................................................................................... 8

3.2 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ................................................................................................... 10

4.1 Environmental profile ....................................................................................................................................... 10

4.2 Conformance requirements .............................................................................................................................. 10

4.2.1 Transmitter requirements ............................................................................................................................ 10

4.2.1.0 Applicability.......................................................................................................................................... 10

4.2.1.1 Frequency error ..................................................................................................................................... 10

4.2.1.1.1 Requirement .................................................................................................................................... 10

4.2.1.1.2 Conformance ................................................................................................................................... 10

4.2.1.2 Transmitter power ................................................................................................................................. 11

4.2.1.2.1 Requirement .................................................................................................................................... 11

4.2.1.2.2 Conformance ................................................................................................................................... 11

4.2.1.3 Adjacent channel power ........................................................................................................................ 11

4.2.1.3.1 Requirement .................................................................................................................................... 11

4.2.1.3.2 Conformance ................................................................................................................................... 12

4.2.1.4 Spurious emissions ................................................................................................................................ 13

4.2.1.4.1 Conducted emissions ....................................................................................................................... 13

4.2.1.4.2 Radiated emissions - cabinet radiation ............................................................................................ 15

4.2.1.5 Intermodulation attenuation .................................................................................................................. 15

4.2.1.5.1 Requirements ................................................................................................................................... 15

4.2.1.5.2 Conformance ................................................................................................................................... 15

4.2.1.6 Transient behaviour of the transmitter .................................................................................................. 15

4.2.1.6.1 RF power rise time .......................................................................................................................... 15

4.2.1.6.2 RF power release time ..................................................................................................................... 17

4.2.1.7 Modulation Accuracy - Symbol constellation error .............................................................................. 17

4.2.1.7.1 Requirement .................................................................................................................................... 17

4.2.1.7.2 Conformance ................................................................................................................................... 17

4.2.1.8 Emissions in unassigned time slots ....................................................................................................... 18

4.2.1.8.1 Requirement .................................................................................................................................... 18

4.2.1.8.2 Conformance ................................................................................................................................... 18

4.2.2 Receiver requirements ................................................................................................................................ 19

4.2.2.1 Applicability.......................................................................................................................................... 19

4.2.2.2 Sensitivity ............................................................................................................................................. 19

4.2.2.2.1 Requirements ................................................................................................................................... 19

4.2.2.2.2 Conformance ................................................................................................................................... 20

4.2.2.3 Symbol rate capture range ..................................................................................................................... 20

4.2.2.3.1 Requirements ................................................................................................................................... 20

4.2.2.3.2 Conformance ................................................................................................................................... 21

4.2.2.4 Co-channel rejection ............................................................................................................................. 21

4.2.2.4.1 Requirements ................................................................................................................................... 21

4.2.2.4.2 Conformance ................................................................................................................................... 22

4.2.2.5 Adjacent Channel selectivity ................................................................................................................. 23

4.2.2.5.1 Requirements ................................................................................................................................... 23

4.2.2.5.2 Conformance ................................................................................................................................... 25

4.2.2.6 Spurious response rejection ................................................................................................................... 26

4.2.2.6.1 Requirements ................................................................................................................................... 26

4.2.2.6.2 Conformance ................................................................................................................................... 28

4.2.2.7 Spurious emissions ................................................................................................................................ 29

4.2.2.7.1 Conducted spurious emission .......................................................................................................... 29

4.2.2.7.2 Cabinet radiation ............................................................................................................................. 29

4.2.2.8 Out-of-band Intermodulation ................................................................................................................ 29

4.2.2.8.1 Requirements ................................................................................................................................... 29

4.2.2.8.2 Conformance ................................................................................................................................... 30

5 General test conditions for compliance with technical requirements ..................................................... 31

5.1 Environmental conditions for testing ............................................................................................................... 31

5.1.0 General Requirements ................................................................................................................................. 31

5.1.1 Normal and extreme test conditions............................................................................................................ 32

5.1.1.0 General .................................................................................................................................................. 32

5.1.1.1 Normal temperature and humidity ........................................................................................................ 32

5.1.1.2 Normal power sources ........................................................................................................................... 32

5.1.1.2.1 Mains voltage and frequency ........................................................................................................... 32

5.1.1.2.2 Other power sources ........................................................................................................................ 32

5.1.2 Extreme test conditions ............................................................................................................................... 32

5.1.2.1 Extreme temperatures ............................................................................................................................ 32

5.1.2.2 Procedure for tests at extreme temperatures .......................................................................................... 33

5.1.2.2.1 General ............................................................................................................................................ 33

5.1.2.2.2 Low temperature .............................................................................................................................. 33

5.1.2.3 Extreme values of test power sources ................................................................................................... 33

5.1.2.4 Other power sources .............................................................................................................................. 33

5.1.3 Test power source ....................................................................................................................................... 33

5.2 Interpretation of the measurement results ........................................................................................................ 34

requirements of Directive 2014/53/EU ......................................................... 35

Annex B (informative): Bibliography ................................................................................................... 37

History .............................................................................................................................................................. 38

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

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

This final 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 Vote phase of the

The present document has been prepared under the Commission's standardisation request C(2015) 5376 final [i.7] to

provide one voluntary 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 and repealing

The present document provides the technical procedures and limits for compliance with article 3.2 of the Directive

2014/53/EU [i.1] for VHF ground-air digital broadcast of Ground-Based Augmentation System (GBAS).

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

Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

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

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

The present document applies to VDB ground-air digital broadcast using Differential Eight Phase Shift Keying

(D8PSK) of Ground-Based Augmentation System GBAS, intended for channel increments of 25 kHz. The VDB system

provides data broadcast from ground based to aircraft systems, operating in the VHF band (108,000 MHz to

117,975 MHz). The scope of the present document is limited to ground based stations and is restricted to the civil use of

The present document states the technical specifications for ground-based equipment implementing Very High

Frequency (VHF) Data Broadcast (VDB) air interface, operating in the VHF band (108,000 MHz to 117,975 MHz) in

NOTE: In ICAO Annex 10, Vol. 1 [2], clause 7.2.3 in attachment D it is stated: "...Until compatibility criteria are

developed for GBAS VDB and ILS, VDB cannot be assigned to channels below 112.025 MHz."

The present document applies to VDB ground-air digital broadcast using Differential Eight Phase Shift Keying

(D8PSK) of Ground-Based Augmentation System GBAS, intended for channel increments of 25 kHz. The VDB system

provides data broadcast from ground based to aircraft systems, operating in the VHF band (108,000 MHz to

117,975 MHz). The scope of the present document is limited to ground based stations and is restricted to the civil use of

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].

In addition to the present document, other ENs that specify technical requirements in respect of essential requirements

under other parts of article 3 of the Radio Equipment Directive [i.1] as well as essential requirements under the SES

Interoperability Regulation 552/2004 [i.2] and related implementing rules and/or essential requirements under the

EASA basic Regulation (EC) No 216/2008 [i.5] and Regulation (EC) No 1108/2009 [i.6] may apply to equipment

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 version of the

Referenced documents which are not found to be publicly available in the expected location might be found at

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

The following referenced documents are necessary for the application of the present document.

[1] ETSI EN 300 113-1 (V1.7.1) (11-2011): "Electromagnetic compatibility and Radio spectrum

Matters (ERM); Land mobile service; Radio equipment intended for the transmission of data

(and/or speech) using constant or non-constant envelope modulation and having an antenna

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 version of the

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

The following referenced documents are not necessary for the application of the present document but they assist the

[i.1] 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

[i.2] Regulation (EC) 552/2004 of the European Parliament and Council of 10 March 2004 on the

interoperability of the European Air Traffic Management network (the interoperability

Regulation). OJ L96, 31.03.2004, p. 26 as amended by Regulation EC No 1070/2009, OJ L 300,

[i.3] ETSI TR 100 028-1 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);

Uncertainties in the measurement of mobile radio equipment characteristics; Part 1".

[i.4] ETSI TR 100 028-2 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);

Uncertainties in the measurement of mobile radio equipment characteristics; Part 2".

[i.5] Regulation (EC) No 216/2008 of the European Parliament and of the Council of 20 February 2008

on common rules in the field of civil aviation and establishing a European Aviation Safety

Agency, and repealing Council Directive 91/670/EEC, Regulation (EC) No 1592/2002 and

[i.6] Regulation (EC) No 1108/2009 of the European Parliament and of the Council of 21 October 2009

amending Regulation (EC) No 216/2008 in the field of aerodromes, air traffic management and air

[i.7] Commission Implementing Decision C(2015) 5376 final of 4.8.2015 on a standardisation request

to the European Committee for Electrotechnical Standardisation and to the European

Telecommunications Standards Institute as regards radio equipment in support of Directive

For the purposes of the present document, the terms and definitions given in the Radio Equipment Directive [i.1] and

adjacent channel power: amount of the modulated RF signal power transmitted outside of the assigned channel

NOTE: Adjacent channel power includes discrete spurious, signal sidebands and noise density (including phase

adjacent channel rejection: receiver's ability to demodulate the desired signal and meet the uncorrected BER

NOTE: The ratio (in dB) between the adjacent interfering signal level and the desired signal level necessary to

achieve the specified minimum uncorrected BER, is the Adjacent Channel Rejection (ACR) ratio.

Aeronautical Mobile Route Service (AM(R)S): mobile service between ground based stations and airborne stations,

average transmitter output power: average power supplied to the antenna transmission line by a transmitter during an

interval of time sufficiently long, compared with the lowest frequency encountered in the modulation, taken under

Bit Error Rate (BER): ratio between the number of erroneous bits received and the total number of bits received

NOTE: The uncorrected BER represents the BER without the benefit of Forward Error Correction (FEC).

Co-Channel Interference (CCI): capability of a receiver to demodulate the desired signal and achieve the minimum

specified BER performance in the presence of an unwanted signal at the same assigned channel

NOTE: The ratio (in dB) between the wanted signal level and the unwanted signal level is the co-channel

conducted measurements: measurements which are made using a direct RF connection to the equipment under test

data rate: with a nominal data rate of 31 500 bits/s, the VDB symbol rate is expected to be 10 500 symbols/s

environmental profile: range of environmental conditions under which equipment within the scope of the present

ground based station: aeronautical station equipment, in the Aeronautical Mobile Route Service (AM(R)S), for use

radiated measurements: measurements which involve the measurement of a radiated field

spurious emissions: conducted RF emissions on a frequency or frequencies which are outside the necessary bandwidth

and the level of which may be reduced without affecting the corresponding transmission of information

NOTE: Spurious emissions include parasitic emissions, intermodulation products and frequency conversion

The technical requirements of the present document apply under the environmental profile for operation of the

equipment, which shall be declared by the supplier. The equipment shall comply with all the technical requirements of

the present document at all times when operating within the boundary limits of the declared operational environmental

All the technical requirements in clause 4.2.1 shall only be applicable for equipment contain

Draft ETSI EN 303 084 V2.1.0 (2015-08)
HARMONISED EUROPEAN STANDARD
Ground Based Augmentation System (GBAS)
VHF ground-air Data Broadcast (VDB);
Technical characteristics and methods of measurement for
ground-based equipment;
Harmonised Standard covering the essential requirements of
article 3.2 of the Directive 2014/53/EU
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 303 084 V2.1.0 (2015-08)
Reference
REN/ERM-JTFEA-19
Keywords
aeronautical, AM, DSB, radio, testing, VHF
ETSI
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Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

Modal verbs terminology .................................................................................................................................... 5

Executive Summary ............................................................................................................................................ 5

Introduction ........................................................................................................................................................ 6

1 Scope ........................................................................................................................................................ 7

2 References ................................................................................................................................................ 7

2.1 Normative references ......................................................................................................................................... 7

2.2 Informative references ........................................................................................................................................ 7

3 Definitions and abbreviations ................................................................................................................... 8

3.1 Definitions .......................................................................................................................................................... 8

3.2 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ..................................................................................................... 9

4.1 Environmental profile ......................................................................................................................................... 9

4.2 Conformance requirements ................................................................................................................................ 9

4.2.1 Transmitter requirements .............................................................................................................................. 9

4.2.1.0 Applicability............................................................................................................................................ 9

4.2.1.1 Frequency error ..................................................................................................................................... 10

4.2.1.1.1 Requirement .................................................................................................................................... 10

4.2.1.1.2 Conformance ................................................................................................................................... 10

4.2.1.2 Transmitter power ................................................................................................................................. 10

4.2.1.2.1 Requirement .................................................................................................................................... 10

4.2.1.2.2 Conformance ................................................................................................................................... 11

4.2.1.3 Adjacent channel power ........................................................................................................................ 11

4.2.1.3.1 Requirement .................................................................................................................................... 11

4.2.1.3.2 Conformance ................................................................................................................................... 12

4.2.1.4 Spurious emissions ................................................................................................................................ 13

4.2.1.4.1 Conducted emissions ....................................................................................................................... 13

4.2.1.4.2 Radiated emissions - cabinet radiation ............................................................................................ 15

4.2.1.5 Intermodulation attenuation .................................................................................................................. 15

4.2.1.5.1 Requirements ................................................................................................................................... 15

4.2.1.5.2 Conformance ................................................................................................................................... 15

4.2.1.6 Transient behaviour of the transmitter .................................................................................................. 16

4.2.1.6.1 RF power rise time .......................................................................................................................... 16

4.2.1.6.2 RF power release time ..................................................................................................................... 17

4.2.1.7 Modulation Accuracy - Symbol constellation error .............................................................................. 18

4.2.1.7.1 Requirement .................................................................................................................................... 18

4.2.1.7.2 Conformance ................................................................................................................................... 18

4.2.1.8 Emissions in unassigned time slots ....................................................................................................... 18

4.2.1.8.1 Requirement .................................................................................................................................... 18

4.2.1.8.2 Conformance ................................................................................................................................... 19

4.2.2 Receiver requirements ................................................................................................................................ 19

4.2.2.1 Applicability.......................................................................................................................................... 19

4.2.2.2 Sensitivity ............................................................................................................................................. 19

4.2.2.2.1 Requirements ................................................................................................................................... 19

4.2.2.2.2 Conformance ................................................................................................................................... 20

4.2.2.3 Symbol rate capture range ..................................................................................................................... 21

4.2.2.3.1 Requirements ................................................................................................................................... 21

4.2.2.3.2 Conformance ................................................................................................................................... 21

4.2.2.4 Co-channel rejection ............................................................................................................................. 22

4.2.2.4.1 Requirements ................................................................................................................................... 22

4.2.2.4.2 Conformance ................................................................................................................................... 22

4.2.2.5 Adjacent Channel selectivity ................................................................................................................. 23

4.2.2.5.1 Requirements ................................................................................................................................... 23

4.2.2.5.2 Conformance ................................................................................................................................... 25

4.2.2.6 Spurious response rejection ................................................................................................................... 26

4.2.2.6.1 Requirements ................................................................................................................................... 26

4.2.2.6.2 Conformance ................................................................................................................................... 28

4.2.2.7 Spurious emissions ................................................................................................................................ 29

4.2.2.7.1 Conducted spurious emission .......................................................................................................... 29

4.2.2.7.2 Cabinet radiation ............................................................................................................................. 29

4.2.2.8 Out-of-band Intermodulation ................................................................................................................ 29

4.2.2.8.1 Requirements ................................................................................................................................... 29

4.2.2.8.2 Conformance ................................................................................................................................... 30

5 General test conditions for compliance with technical requirements ..................................................... 31

5.1 Environmental conditions for testing ............................................................................................................... 31

5.1.1 Normal and extreme test conditions............................................................................................................ 31

5.1.1.1 Normal temperature and humidity ........................................................................................................ 31

5.1.1.2 Normal power sources ........................................................................................................................... 32

5.1.1.2.1 Mains voltage and frequency ........................................................................................................... 32

5.1.1.2.2 Other power sources ........................................................................................................................ 32

5.1.2 Extreme test conditions ............................................................................................................................... 32

5.1.2.1 Extreme temperatures ............................................................................................................................ 32

5.1.2.2 Procedure for tests at extreme temperatures .......................................................................................... 32

5.1.2.2.1 General ............................................................................................................................................ 32

5.1.2.2.2 Low temperature .............................................................................................................................. 33

5.1.2.3 Extreme values of test power sources ................................................................................................... 33

5.1.2.4 Other power sources .............................................................................................................................. 33

5.1.3 Test power source ....................................................................................................................................... 33

5.2 Interpretation of the measurement results ........................................................................................................ 33

requirements of Directive 2014/53/EU ......................................................... 35

History .............................................................................................................................................................. 37

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

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

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

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

NOTE: The corresponding Commission's standardisation 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

Date of withdrawal of any conflicting National Standard (dow): 18 months after doa

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

"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

The present document applies to VDB ground-air digital broadcast using Differential Eight Phase Shift Keying

(D8PSK) of Ground-Based Augmentation System GBAS, intended for channel increments of 25 kHz. The VDB system

provides data broadcast from ground based to aircraft systems, operating in the VHF band (108,000 MHz to

117,975 MHz). The scope of the present document is limited to ground based stations and is restricted to the civil use of

The present document states the technical specifications for ground-based equipment implementing Very High

Frequency (VHF) Data Broadcast (VDB) air interface, operating in the VHF band (108,000 MHz to 117,975 MHz) in

NOTE: In ICAO Annex 10, Vol. 1 [2], clause 7.2.3 in attachment D it is stated: "...Until compatibility criteria are

developed for GBAS VDB and ILS, VDB cannot be assigned to channels below 112.025 MHz."

The present document applies to VDB ground-air digital broadcast using Differential Eight Phase Shift Keying

(D8PSK) of Ground-Based Augmentation System GBAS, intended for channel increments of 25 kHz. The VDB system

provides data broadcast from ground based to aircraft systems, operating in the VHF band (108,000 MHz to

117,975 MHz). The scope of the present document is limited to ground based stations and is restricted to the civil use of

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].

In addition to the present document, other ENs that specify technical requirements in respect of essential requirements

under other parts of article 3 of the RE Directive [i.1] as well as essential requirements under the SES Interoperability

Regulation 552/2004 [i.2] and related implementing rules and/or essential requirements under the EASA basic

regulation 216/2008 [i.6] may apply to equipment within the scope of the present document.

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 version of the

Referenced documents which are not found to be publicly available in the expected location might be found at

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

The following referenced documents are necessary for the application of the present document.

[1] ETSI EN 300 113-1 (V1.7.1) (11-2011): "Electromagnetic compatibility and Radio spectrum

Matters (ERM); Land mobile service; Radio equipment intended for the transmission of data

(and/or speech) using constant or non-constant envelope modulation and having an antenna

[3] ICAO DOC 8071 Volume II (fifth edition - 2007): "Manual on Testing of Radio Navigation Aids".

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 version of the

NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee

The following referenced documents are not necessary for the application of the present document but they assist the

[i.1] 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

[i.2] Regulation (EC) 552/2004.of the European Parliament and Council of 10 March 2004 on the

interoperability of the European Air Traffic Management network (the interoperability

Regulation). OJ L96, 31.03.2004, p. 26 as amended by Regulation EC No 1070/2009, OJ L 300,

[i.3] EUROCAE ED-114A: "Minimum operational performance specification for global navigation

satellite ground based augmentation system equipment to support category I operations".

[i.4] ETSI TR 100 028 (all parts) (V1.4.1) (2001): "Electromagnetic compatibility and Radio spectrum

Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics".

[i.5] ETSI TR 100 028-2 (V1.4.1): "Electromagnetic compatibility and Radio spectrum Matters (ERM);

Uncertainties in the measurement of mobile radio equipment characteristics; Part 2".

[i.6] Regulation (EU) 1025/2012 of the European Parliament and of the Council of 25 October 2012 on

European Standardisation, amending Council Directives 89/686EEC and 93/15/EEC and

Directives 94/9/EC, 94/25/EC 95/16/EC, 97/23/EC, 98/34/EC, 2004/22/EC, 2007/23/EC,

2009/23/EC and 2009/105/EC and the European Parliaments and of the Council and repealing

Council Decision 87/95/EEC and Decision No 1673/2006/EC of the European Parliament and of

For the purposes of the present document, the terms and definitions given in the RE Directive [i.1] and the following

adjacent channel power: amount of the modulated RF signal power transmitted outside of the assigned channel

NOTE: Adjacent channel power includes discrete spurious, signal sidebands and noise density (including phase

adjacent channel rejection: receiver's ability to demodulate the desired signal and meet the uncorrected BER

NOTE: The ratio (in dB) between the adjacent interfering signal level and the desired signal level necessary to

achieve the specified minimum uncorrected BER, is the Adjacent Channel Rejection (ACR) ratio.

Aeronautical Mobile Route Service (AM(R)S): mobile service between ground based stations and airborne stations,

average transmitter output power: average power supplied to the antenna transmission line by a transmitter during an

interval of time sufficiently long, compared with the lowest frequency encountered in the modulation, taken under

Bit Error Rate (BER): ratio between the number of erroneous bits received and the total number of bits received

NOTE: The uncorrected BER represents the BER without the benefit of Forward Error Correction (FEC).

Co-Channel Interference (CCI): capability of a receiver to demodulate the desired signal and achieve the minimum

specified BER performance in the presence of an unwanted signal at the same assigned channel

NOTE: The ratio (in dB) between the wanted signal level and the unwanted signal level is the co-channel

conducted measurements: measurements which are made using a direct RF connection to the equipment under test

data rate: with a nominal data rate of 31 500 bits/s, the VDB symbol rate is expected to be 10 500 symbols/s

environmental profile: range of environmental conditions under which equipment within the scope of the present

ground based station: aeronautical station equipment, in the Aeronautical Mobile Route Service (AM(R)S), for use

radiated measurements: measurements which involve the measurement of a radiated field

spurious emissions: conducted RF emissions on a frequency or frequencies which are outside the necessary bandwidth

and the level of which may be reduced without affecting the corresponding transmission of information

NOTE: Spurious emissions include parasitic emissions, intermodulation products and frequency conversion

The technical requirements of the present document apply under the environmental profile for operation of the

equipment, which shall be declared by the supplier. The equipment shall comply with all the technical requirements of

the present document at all times when operating within the boundary limits of the declared operational environmental

All the technical requirements in clause 4.2.1 shall only be applicable for equipment containing a transmitter.

The frequency of the RF carrier shall be within ±2 ppm of the selected frequency as specified in Table II-4-2B of ICAO

To facilitate the measurement of the RF carrier frequency, the transmitter shall provide a CW mode.

The following conformance test shall be performed to comply with the technical requirement in clause 4.2.1.1.1.

• Frequency counter (FC) or spectrum analyser (SA), which is suitable for the measurement of the requirements

Step 3: Key the transmitter under test (TUT) "on" and set the Unit under test to transmit an unmodulated