VHF air-ground Digital Link (VDL) Mode 4 radio equipment - Technical characteristics and methods of measurement for ground-based equipment - Part 5: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU

The present document applies to Very High Frequency (VHF) Digital Link (VDL) Mode 4 ground-based radio
transmitters and receivers for air-ground communications operating in the VHF band, using Gaussian-filtered
Frequency Shift Keying (GFSK) Modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz
channels from 112,000 MHz to 136,975 MHz as defined in ICAO VHF Digital Link (VDL) Standards and
Recommended Practices (SARPs) [i.5].
Manufacturers should note that in future the tuning range for the ground transceivers may also cover any 25 kHz
channel from 108,000 MHz to 111,975 MHz.
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.2].
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 Directive 2014/53/EU [i.2] as well as essential requirements under the Single
European Sky Interoperability Regulation 552/2004 [i.10] and related implementing rules and/or essential requirements
under the EASA basic regulation No 216/2008 [i.3] as amended by Regulation No 1108/2009 [i.4] may apply to
equipment within the scope of the present document.

Radijska oprema za digitalno povezavo VHF zrak-tla, 4. način - Tehnične karakteristike in merilne metode za talno opremo - 5. del: Harmonizirani standard, ki zajema bistvene zahteve člena 3.2 direktive 2014/53/EU

Ta dokument se uporablja za talne radijske oddajnike in sprejemnike za zelo visokofrekvenčno (VHF) digitalno povezavo (VDL) za komunikacije zrak-tla, 4. način, ki delujejo v pasu VHF z uporabo modulacije frekvenčnega premičnega kodiranja prek filtra Gaussian (GFSK) z razmikom 25 kHz med kanali in so zmožni uravnavati na katerem koli izmed kanalov 25 kHz
od 112,000 MHz do 136,975 MHz, kot je opredeljeno v standardih in priporočenih praksah (SARP) [i.5] za digitalne povezave ICAO VHF.
Proizvajalci naj upoštevajo, da lahko razpon uravnavanja za talne oddajnike-sprejemnike v prihodnje zajema tudi kateri koli kanal 25 kHz od 108,000 MHz do 111,975 MHz.
Ta dokument vsebuje zahteve, s katerimi se dokazuje, da »... mora biti radijska oprema sestavljena tako, da učinkovito uporablja in tudi podpira učinkovito rabo radijskega spektra z namenom preprečevanja škodljivih motenj« [i.2].
Poleg tega dokumenta se za opremo na področju uporabe tega dokumenta uporabljajo tudi drugi standardi EN, ki določajo tehnične zahteve v zvezi z bistvenimi zahtevami iz drugih delov člena 3 direktive 2014/53/EU [i.2], ter tudi bistvene zahteve iz uredbe o interoperabilnosti enotnega evropskega neba 552/2004 [i.10] in zadevna izvedbena pravila in/ali bistvene zahteve iz uredbe EASA št. 216/2008 [i.3], kakor je bila spremenjena z uredbo št. 1108/2009 [i.4].

General Information

Status
Published
Public Enquiry End Date
06-Sep-2016
Publication Date
12-Oct-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Sep-2016
Due Date
24-Nov-2016
Completion Date
13-Oct-2016

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ETSI EN 301 842-5 V2.1.1 (2016-09) - VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 5: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.KQLþQHVHF air-ground Digital Link (VDL) Mode 4 radio equipment - Technical characteristics and methods of measurement for ground-based equipment - Part 5: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU49.090On-board equipment and instruments33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:ETSI EN 301 842-5 V2.1.1 (2016-09)SIST EN 301 842-5 V2.1.1:2016en01-november-2016SIST EN 301 842-5 V2.1.1:2016SLOVENSKI
STANDARD



SIST EN 301 842-5 V2.1.1:2016



ETSI EN 301 842-5 V2.1.1 (2016-09) VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 5: Harmonised Standard covering the essential requirements of article 3.2 of the Directive 2014/53/EU
HARMONISED EUROPEAN STANDARD SIST EN 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 2
Reference REN/ERM-TGAERO-33 Keywords aeronautical, digital, harmonised standard, 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 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.
© European Telecommunications Standards Institute 2016. 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 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 3 Contents Intellectual Property Rights . 5 Foreword . 5 Modal verbs terminology . 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 Receiver requirements . 10 4.2.1.1 General: Reference Signal . 10 4.2.1.2 Sensitivity . 10 4.2.1.3 Adjacent Channel Rejection . 10 4.2.1.4 Spurious response rejection of signals within the VHF aeronautical band . 11 4.2.1.4.1 Definition. 11 4.2.1.4.2 Limits . 11 4.2.1.4.3 Conformance . 11 4.2.1.5 Spurious response rejection of signals outside the VHF aeronautical band . 11 4.2.1.5.1 Definition. 11 4.2.1.5.2 Limits . 11 4.2.1.5.3 Conformance . 11 4.2.1.6 Co-channel interference . 11 4.2.1.7 Receiver Conducted spurious emission . 12 4.2.1.7.1 Definition. 12 4.2.1.7.2 Limits . 12 4.2.1.8 In-band Intermodulation . 12 4.2.1.8.1 Definition. 12 4.2.1.8.2 Limits . 12 4.2.1.9 Receiver Cabinet radiation . 12 4.2.1.9.1 Definition. 12 4.2.1.9.2 Limits . 12 4.2.2 Transmitter requirements . 12 4.2.2.1 Manufacturer's declared output power . 12 4.2.2.1.1 Definition. 12 4.2.2.1.2 Limits . 12 4.2.2.2 RF power rise time . 13 4.2.2.2.1 Definition. 13 4.2.2.2.2 Limits . 13 4.2.2.3 RF power release time . 13 4.2.2.3.1 Definition. 13 4.2.2.3.2 Limits . 13 4.2.2.4 Transmitter Conducted Spurious emissions . 13 4.2.2.4.1 Definition. 13 4.2.2.5 Adjacent channel power . 13 4.2.2.5.1 Definition. 13 4.2.2.5.2 Limits . 14 4.2.2.6 Wide-band noise . 14 4.2.2.6.1 Definition. 14 4.2.2.6.2 Limits . 14 4.2.2.7 Frequency Error . 14 SIST EN 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 4 4.2.2.7.1 Definition. 14 4.2.2.7.2 Limits . 14 4.2.2.8 Load VSWR capability . 14 4.2.2.8.1 Definition. 14 4.2.2.8.2 Limits . 14 4.2.2.9 Transmitter Cabinet radiation. 15 4.2.2.9.1 Definition. 15 4.2.2.9.2 Limits . 15 4.2.3 Transceiver requirements . 15 4.2.3.1 Receiver to transmitter turnaround time . 15 4.2.3.1.1 Definition. 15 4.2.3.1.2 Limits . 15 4.2.3.2 Transmitter to receiver turnaround time . 15 4.2.3.2.1 Definition. 15 4.2.3.2.2 Limits . 15 5 Testing for compliance with technical requirements . 15 5.1 Environmental conditions for testing . 15 5.2 Interpretation of the measurement results . 16 Annex A (normative): Relationship between the present document and the essential requirements of Directive 2014/53/EU . 17 History . 19
SIST EN 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 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 radiserver) 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.1] 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.2]. 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 provides the technical procedures and limits for compliance with article 3.2 of the Directive 2014/53/EU [i.2] for the ground equipment only. The present document is part 5 of a multi-part deliverable covering the VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment, as identified below: Part 1: "EN for ground equipment"; Part 2: "General description and data link layer"; Part 3: "Additional broadcast aspects"; Part 4: "Point-to-point functions"; Part 5: "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: 7 September 2016 Date of latest announcement of this EN (doa): 31 December 2016 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
30 June 2017 Date of withdrawal of any conflicting National Standard (dow): 30 June 2018
SIST EN 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 6 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 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 7 1 Scope The present document applies to Very High Frequency (VHF) Digital Link (VDL) Mode 4 ground-based radio transmitters and receivers for air-ground communications operating in the VHF band, using Gaussian-filtered Frequency Shift Keying (GFSK) Modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz channels from 112,000 MHz to 136,975 MHz as defined in ICAO VHF Digital Link (VDL) Standards and Recommended Practices (SARPs) [i.5]. Manufacturers should note that in future the tuning range for the ground transceivers may also cover any 25 kHz channel from 108,000 MHz to 111,975 MHz. 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.2]. 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 Directive 2014/53/EU [i.2] as well as essential requirements under the Single European Sky Interoperability Regulation 552/2004 [i.10] and related implementing rules and/or essential requirements under the EASA basic regulation No 216/2008 [i.3] as amended by Regulation No 1108/2009 [i.4] 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 301 842-1 (V1.4.1) (04-2015): "VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 1: EN for ground equipment". [2] 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". 2.2 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. SIST EN 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 8 [i.1] 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. [i.2] 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.3] 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.4] 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.5] ICAO Annex 10 to the Convention on International Civil Aviation: "Aeronautical Telecommunications, Volume III: Communication Systems, Part I: Digital Data Communication Systems, Chapter 6", inc. Amendment 88-A (applicable from 14/11/2013). [i.6] ISO/IEC 7498-1 (1994): "Information technology - Open Systems Interconnection - Basic Reference Model: The Basic Model". [i.7] ISO/IEC 10731 (1994): "Information technology - Open Systems Interconnection - Basic Reference Model - Conventions for the definition of OSI services". [i.8] 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.9] 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.10] EC Regulation No 552/2004 of the European Parliament and of the Council of 10 March 2004 on the interoperability of the European Air Traffic Management network (interoperability Regulation), OJ L 96, 31.03.2004, p. 26 as amended by Regulation (EC) No 1070/2009, OJ L 300, 14.11.2009, p. 34. 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.2], ISO/IEC 7498-1 [i.6], ISO/IEC 10731 [i.7] and the following apply: adjacent channel power: amount of the modulated RF signal power which falls within a given adjacent channel NOTE: Adjacent channel power includes discrete spurious, signal sidebands, and noise density (including phase noise) at the transmitter output. Bit Error Rate (BER): ratio between the number of erroneous bits received and the total number of bits received data rate: maximum amount of data that can be transmitted in a specified amount of time, typically expressed as bits per second NOTE: The nominal data rate for VDL Mode 4 is 19 200 bits/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 SIST EN 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 9 ground base station: aeronautical station equipment, in the aeronautical mobile service, for use with an external antenna and intended for use at a fixed location integral antenna equipment: radio communications equipment with an antenna integrated into the equipment without the use of an external connector and considered to be part of the equipment NOTE: An integral antenna may be internal or external to the equipment. In equipment of this type, a 50 Ω RF connection point is provided for test purposes. non-integral antenna equipment: radio communications equipment with a connector intended for connection to an antenna radiated measurements: measurements which involve the measurement of a radiated field reference signal level: signal level used in the receiver performance specifications except otherwise stated 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. station: VDL Mode 4 Specific Services (VSS)-capable entity NOTE: A station may be either a mobile station or a ground station. A station is a physical entity that transmits and receives bursts over the RF interface (either A/G or A/A) and comprises, at a minimum: a physical layer, media access control sublayer, and a unique VSS address. A station which is also a DLS station has the same address. VDL Mode 4: VHF data link using a Gaussian Filtered Frequency Shift Keying modulation scheme and self-organizing time division multiple access VDL Mode 4 station: physical entity that transmits and receives VDL Mode 4 bursts over the RF interface (either A/G or A/A) and comprises, as a minimum: a physical layer, Media Access Control sublayer and a VSS sublayer NOTE: A VDL Mode 4 station may either be a mobile VDL Mode 4 station or a ground VDL Mode 4 station. VDL Station: VDL-capable entity that transmits and receives VDL bursts over the RF interface (either A/G or A/A) and comprises, as a minimum: a physical layer, Media Access Control sublayer and a VSS sublayer NOTE: A station may either be a mobile station or a ground station. A station is a physical entity that transmits and receives frames over the air/ground (A/G) interface and comprises, at a minimum: a physical layer, media access control sublayer, and a unique DLS address. The particular initiating process (i.e. DLE or LME) in the station cannot be determined by the source DLS address. The particular destination process cannot be determined by the destination DLS address. These can be determined only by the context of these frames as well as the current operational state of the DLEs. VDL System: VDL-capable entity comprising one or more stations and the associated VDL management entity NOTE: A system may either be a mobile system or a ground system. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: A/A Air-to-Air A/G Air/Ground BER Bit Error Rate DLE Data Link Entity DLS Data Link Service EASA European Aviation Safety Agency EN European Norm GFSK Gaussian Filtered Frequency Shift Keying ICAO International Civil Aviation Organization SIST EN 301 842-5 V2.1.1:2016



ETSI ETSI EN 301 842-5 V2.1.1 (2016-09) 10 IPR Intellectual Property Rights ISO International Organization for Standardization LME Link Management Entity RF Radio Frequency SARPs Standards And Recommended Practices VDL VHF Digital Link VHF Very High Frequency VSS VDL Mode 4 Specific Services VSWR Voltage Standing Wave Ratio 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 manufacturer. 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 Receiver requirements 4.2.1.1 General: Reference Signal The reference signal level applied at the receiver input for all the receiver requirements below described, unless otherwise stated, shall be as specified in clause 6.1.3 of ETSI EN 301 842-1 [1]. 4.2.1.2 Sensitivity 4.2.1.2.1 Definition The radio receiver sensitivity is defined as the power level at the receiver input at which the Bit Error Ratio (BER) is as specified in clause 6.1.2 of ETSI EN 301 842-1 [1]. 4.2.1.2.2 Limits The sensitivity shall be as specified in ETSI EN 301 842-1 [1], clause 6.1.4. 4.2.1.2.3 Conformance To demonstrate conformance, the equipment shall pass the test procedure described in ETSI EN 301 842-1 [1], clause 9.1.2. 4.2.1.3 Adjacent Channel Rejection 4.2.1.3.1 Definition The ad
...

ETSI EN 301 842-5 V2.1.1 (2016-09)






HARMONISED EUROPEAN STANDARD
VHF air-ground Digital Link (VDL) Mode 4 radio equipment;
Technical characteristics and methods of measurement
for ground-based equipment;
Part 5: Harmonised Standard covering the essential
requirements of article 3.2 of the Directive 2014/53/EU

---------------------- Page: 1 ----------------------
2 ETSI EN 301 842-5 V2.1.1 (2016-09)



Reference
REN/ERM-TGAERO-33
Keywords
aeronautical, digital, harmonised standard, 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
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.

© European Telecommunications Standards Institute 2016.
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

---------------------- Page: 2 ----------------------
3 ETSI EN 301 842-5 V2.1.1 (2016-09)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 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 Receiver requirements . 10
4.2.1.1 General: Reference Signal . 10
4.2.1.2 Sensitivity . 10
4.2.1.3 Adjacent Channel Rejection . 10
4.2.1.4 Spurious response rejection of signals within the VHF aeronautical band . 11
4.2.1.4.1 Definition. 11
4.2.1.4.2 Limits . 11
4.2.1.4.3 Conformance . 11
4.2.1.5 Spurious response rejection of signals outside the VHF aeronautical band . 11
4.2.1.5.1 Definition. 11
4.2.1.5.2 Limits . 11
4.2.1.5.3 Conformance . 11
4.2.1.6 Co-channel interference . 11
4.2.1.7 Receiver Conducted spurious emission . 12
4.2.1.7.1 Definition. 12
4.2.1.7.2 Limits . 12
4.2.1.8 In-band Intermodulation . 12
4.2.1.8.1 Definition. 12
4.2.1.8.2 Limits . 12
4.2.1.9 Receiver Cabinet radiation . 12
4.2.1.9.1 Definition. 12
4.2.1.9.2 Limits . 12
4.2.2 Transmitter requirements . 12
4.2.2.1 Manufacturer's declared output power . 12
4.2.2.1.1 Definition. 12
4.2.2.1.2 Limits . 12
4.2.2.2 RF power rise time . 13
4.2.2.2.1 Definition. 13
4.2.2.2.2 Limits . 13
4.2.2.3 RF power release time . 13
4.2.2.3.1 Definition. 13
4.2.2.3.2 Limits . 13
4.2.2.4 Transmitter Conducted Spurious emissions . 13
4.2.2.4.1 Definition. 13
4.2.2.5 Adjacent channel power . 13
4.2.2.5.1 Definition. 13
4.2.2.5.2 Limits . 14
4.2.2.6 Wide-band noise . 14
4.2.2.6.1 Definition. 14
4.2.2.6.2 Limits . 14
4.2.2.7 Frequency Error . 14
ETSI

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4 ETSI EN 301 842-5 V2.1.1 (2016-09)
4.2.2.7.1 Definition. 14
4.2.2.7.2 Limits . 14
4.2.2.8 Load VSWR capability . 14
4.2.2.8.1 Definition. 14
4.2.2.8.2 Limits . 14
4.2.2.9 Transmitter Cabinet radiation. 15
4.2.2.9.1 Definition. 15
4.2.2.9.2 Limits . 15
4.2.3 Transceiver requirements . 15
4.2.3.1 Receiver to transmitter turnaround time . 15
4.2.3.1.1 Definition. 15
4.2.3.1.2 Limits . 15
4.2.3.2 Transmitter to receiver turnaround time . 15
4.2.3.2.1 Definition. 15
4.2.3.2.2 Limits . 15
5 Testing for compliance with technical requirements . 15
5.1 Environmental conditions for testing . 15
5.2 Interpretation of the measurement results . 16
Annex A (normative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 17
History . 19

ETSI

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5 ETSI EN 301 842-5 V2.1.1 (2016-09)
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
radiserver) 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.1] 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.2].
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 provides the technical procedures and limits for compliance with article 3.2 of the Directive
2014/53/EU [i.2] for the ground equipment only.
The present document is part 5 of a multi-part deliverable covering the VHF air-ground Digital Link (VDL) Mode 4
radio equipment; Technical characteristics and methods of measurement for ground-based equipment, as identified
below:
Part 1: "EN for ground equipment";
Part 2: "General description and data link layer";
Part 3: "Additional broadcast aspects";
Part 4: "Point-to-point functions";
Part 5: "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: 7 September 2016
Date of latest announcement of this EN (doa): 31 December 2016
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 2017
Date of withdrawal of any conflicting National Standard (dow): 30 June 2018

ETSI

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6 ETSI EN 301 842-5 V2.1.1 (2016-09)
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

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7 ETSI EN 301 842-5 V2.1.1 (2016-09)
1 Scope
The present document applies to Very High Frequency (VHF) Digital Link (VDL) Mode 4 ground-based radio
transmitters and receivers for air-ground communications operating in the VHF band, using Gaussian-filtered
Frequency Shift Keying (GFSK) Modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz
channels from 112,000 MHz to 136,975 MHz as defined in ICAO VHF Digital Link (VDL) Standards and
Recommended Practices (SARPs) [i.5].
Manufacturers should note that in future the tuning range for the ground transceivers may also cover any 25 kHz
channel from 108,000 MHz to 111,975 MHz.
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.2].
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 Directive 2014/53/EU [i.2] as well as essential requirements under the Single
European Sky Interoperability Regulation 552/2004 [i.10] and related implementing rules and/or essential requirements
under the EASA basic regulation No 216/2008 [i.3] as amended by Regulation No 1108/2009 [i.4] 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 301 842-1 (V1.4.1) (04-2015): "VHF air-ground Digital Link (VDL) Mode 4 radio
equipment; Technical characteristics and methods of measurement for ground-based equipment;
Part 1: EN for ground equipment".
[2] 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".
2.2 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.
ETSI

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8 ETSI EN 301 842-5 V2.1.1 (2016-09)
[i.1] 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.
[i.2] 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.3] 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.4] 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.5] ICAO Annex 10 to the Convention on International Civil Aviation: "Aeronautical
Telecommunications, Volume III: Communication Systems, Part I: Digital Data Communication
Systems, Chapter 6", inc. Amendment 88-A (applicable from 14/11/2013).
[i.6] ISO/IEC 7498-1 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model: The Basic Model".
[i.7] ISO/IEC 10731 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model - Conventions for the definition of OSI services".
[i.8] 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.9] 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.10] EC Regulation No 552/2004 of the European Parliament and of the Council of 10 March 2004 on
the interoperability of the European Air Traffic Management network (interoperability
Regulation), OJ L 96, 31.03.2004, p. 26 as amended by Regulation (EC) No 1070/2009, OJ L 300,
14.11.2009, p. 34.
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.2],
ISO/IEC 7498-1 [i.6], ISO/IEC 10731 [i.7] and the following apply:
adjacent channel power: amount of the modulated RF signal power which falls within a given adjacent channel
NOTE: Adjacent channel power includes discrete spurious, signal sidebands, and noise density (including phase
noise) at the transmitter output.
Bit Error Rate (BER): ratio between the number of erroneous bits received and the total number of bits received
data rate: maximum amount of data that can be transmitted in a specified amount of time, typically expressed as bits
per second
NOTE: The nominal data rate for VDL Mode 4 is 19 200 bits/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
ETSI

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9 ETSI EN 301 842-5 V2.1.1 (2016-09)
ground base station: aeronautical station equipment, in the aeronautical mobile service, for use with an external
antenna and intended for use at a fixed location
integral antenna equipment: radio communications equipment with an antenna integrated into the equipment without
the use of an external connector and considered to be part of the equipment
NOTE: An integral antenna may be internal or external to the equipment. In equipment of this type, a 50 Ω RF
connection point is provided for test purposes.
non-integral antenna equipment: radio communications equipment with a connector intended for connection to an
antenna
radiated measurements: measurements which involve the measurement of a radiated field
reference signal level: signal level used in the receiver performance specifications except otherwise stated
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.
station: VDL Mode 4 Specific Services (VSS)-capable entity
NOTE: A station may be either a mobile station or a ground station. A station is a physical entity that transmits
and receives bursts over the RF interface (either A/G or A/A) and comprises, at a minimum: a physical
layer, media access control sublayer, and a unique VSS address. A station which is also a DLS station has
the same address.
VDL Mode 4: VHF data link using a Gaussian Filtered Frequency Shift Keying modulation scheme and self-organizing
time division multiple access
VDL Mode 4 station: physical entity that transmits and receives VDL Mode 4 bursts over the RF interface (either A/G
or A/A) and comprises, as a minimum: a physical layer, Media Access Control sublayer and a VSS sublayer
NOTE: A VDL Mode 4 station may either be a mobile VDL Mode 4 station or a ground VDL Mode 4 station.
VDL Station: VDL-capable entity that transmits and receives VDL bursts over the RF interface (either A/G or A/A)
and comprises, as a minimum: a physical layer, Media Access Control sublayer and a VSS sublayer
NOTE: A station may either be a mobile station or a ground station. A station is a physical entity that transmits
and receives frames over the air/ground (A/G) interface and comprises, at a minimum: a physical layer,
media access control sublayer, and a unique DLS address. The particular initiating process (i.e. DLE or
LME) in the station cannot be determined by the source DLS address. The particular destination process
cannot be determined by the destination DLS address. These can be determined only by the context of
these frames as well as the current operational state of the DLEs.
VDL System: VDL-capable entity comprising one or more stations and the associated VDL management entity
NOTE: A system may either be a mobile system or a ground system.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
A/A Air-to-Air
A/G Air/Ground
BER Bit Error Rate
DLE Data Link Entity
DLS Data Link Service
EASA European Aviation Safety Agency
EN European Norm
GFSK Gaussian Filtered Frequency Shift Keying
ICAO International Civil Aviation Organization
ETSI

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10 ETSI EN 301 842-5 V2.1.1 (2016-09)
IPR Intellectual Property Rights
ISO International Organization for Standardization
LME Link Management Entity
RF Radio Frequency
SARPs Standards And Recommended Practices
VDL VHF Digital Link
VHF Very High Frequency
VSS VDL Mode 4 Specific Services
VSWR Voltage Standing Wave Ratio
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 manufacturer. 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 Receiver requirements
4.2.1.1 General: Reference Signal
The reference signal level applied at the receiver input for all the receiver requirements below described, unless
otherwise stated, shall be as specified in clause 6.1.3 of ETSI EN 301 842-1 [1].
4.2.1.2 Sensitivity
4.2.1.2.1 Definition
The radio receiver sensitivity is defined as the power level at the receiver input at which the Bit Error Ratio (BER) is as
specified in clause 6.1.2 of ETSI EN 301 842-1 [1].
4.2.1.2.2 Limits
The sensitivity shall be as specified in ETSI EN 301 842-1 [1], clause 6.1.4.
4.2.1.2.3 Conformance
To demonstrate conformance, the equipment shall pass the test procedure described in ETSI EN 301 842-1 [1],
clause 9.1.2.
4.2.1.3 Adjacent Channel Rejection
4.2.1.3.1 Definition
The adjacent channel rejection is a measure of the capability of the receiver to receive a wanted
...

Draft ETSI EN 301 842-5 V2.1.0 (2016-06)






HARMONISED EUROPEAN STANDARD
VHF air-ground Digital Link (VDL) Mode 4 radio equipment;
Technical characteristics and methods of measurement
for ground-based equipment;
Part 5: Harmonised Standard covering the essential
requirements of article 3.2 of the Directive 2014/53/EU

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2 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)



Reference
REN/ERM-TGAERO-33
Keywords
aeronautical, digital, radio, testing, VHF

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

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3 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 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 Receiver requirements . 10
4.2.1.1 General: Reference Signal . 10
4.2.1.2 Sensitivity . 10
4.2.1.3 Adjacent Channel Rejection . 10
4.2.1.4 Spurious response rejection of signals within the VHF aeronautical band . 11
4.2.1.4.1 Definition. 11
4.2.1.4.2 Limits . 11
4.2.1.4.3 Conformance . 11
4.2.1.5 Spurious response rejection of signals outside the VHF aeronautical band . 11
4.2.1.5.1 Definition. 11
4.2.1.5.2 Limits . 11
4.2.1.5.3 Conformance . 11
4.2.1.6 Co-channel interference . 11
4.2.1.7 Conducted spurious emission . 12
4.2.1.7.1 Definition. 12
4.2.1.7.2 Limits . 12
4.2.1.8 In-band Intermodulation . 12
4.2.1.8.1 Definition. 12
4.2.1.8.2 Limits . 12
4.2.1.9 Cabinet radiation . 12
4.2.1.9.1 Definition. 12
4.2.1.9.2 Limits . 12
4.2.2 Transmitter requirements . 12
4.2.2.1 Manufacturer's declared output power . 12
4.2.2.1.1 Definition. 12
4.2.2.1.2 Limits . 12
4.2.2.2 RF power rise time . 13
4.2.2.2.1 Definition. 13
4.2.2.2.2 Limits . 13
4.2.2.3 RF power release time . 13
4.2.2.3.1 Definition. 13
4.2.2.3.2 Limits . 13
4.2.2.4 Conducted Spurious emissions . 13
4.2.2.4.1 Definition. 13
4.2.2.5 Adjacent channel power . 13
4.2.2.5.1 Definition. 13
4.2.2.5.2 Limits . 14
4.2.2.6 Wide-band noise . 14
4.2.2.6.1 Definition. 14
4.2.2.6.2 Limits . 14
4.2.2.7 Frequency Error . 14
ETSI

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4 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)
4.2.2.7.1 Definition. 14
4.2.2.7.2 Limits . 14
4.2.2.8 Load VSWR capability . 14
4.2.2.8.1 Definition. 14
4.2.2.8.2 Limits . 14
4.2.2.9 Cabinet radiation . 15
4.2.2.9.1 Definition. 15
4.2.2.9.2 Limits . 15
4.2.3 Transceiver requirements . 15
4.2.3.1 Receiver to transmitter turnaround time . 15
4.2.3.1.1 Definition. 15
4.2.3.1.2 Limits . 15
4.2.3.2 Transmitter to receiver turnaround time . 15
4.2.3.2.1 Definition. 15
4.2.3.2.2 Limits . 15
5 Testing for compliance with technical requirements . 15
5.1 Environmental conditions for testing . 15
5.2 Interpretation of the measurement results . 16
Annex A (normative): Relationship between the present document and the essential
requirements of Directive 2014/53/EU . 17
History . 19

ETSI

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5 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)
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 (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
radiserver) 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 under the Commission's standardisation request C(2015) 5376 final [i.1] 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.2].
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 provides the technical procedures and limits for compliance with article 3.2 of the Directive
2014/53/EU [i.2] for the ground equipment only. The present document is part 5 of a multi-part deliverable covering the
VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement
for ground-based equipment, as identified below:
Part 1: "EN for ground equipment";
Part 2: "General description and data link layer";
Part 3: "Additional broadcast aspects";
Part 4: "Point-to-point functions";
Part 5: "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


ETSI

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6 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)
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

---------------------- Page: 6 ----------------------
7 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)
1 Scope
The present document applies to Very High Frequency (VHF) Digital Link (VDL) Mode 4 ground-based radio
transmitters and receivers for air-ground communications operating in the VHF band, using Gaussian-filtered
Frequency Shift Keying (GFSK) Modulation with 25 kHz channel spacing and capable of tuning to any of the 25 kHz
channels from 112,000 MHz to 136,975 MHz as defined in ICAO VHF Digital Link (VDL) Standards and
Recommended Practices (SARPs) [i.5].
Manufacturers should note that in future the tuning range for the ground transceivers may also cover any 25 kHz
channel from 108,000 MHz to 111,975 MHz.
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.2].
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 Directive 2014/53/EU [i.2] as well as essential requirements under the Single
European Sky Interoperability Regulation 552/2004 [i.10] and related implementing rules and/or essential requirements
under the EASA basic regulation No 216/2008 [i.3] as amended by Regulation No 1108/2009 [i.4] 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 301 842-1 (V1.4.1) (04-2015): "VHF air-ground Digital Link (VDL) Mode 4 radio
equipment; Technical characteristics and methods of measurement for ground-based equipment;
Part 1: EN for ground equipment".
[2] 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".
2.2 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.
ETSI

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8 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)
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] 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.
[i.2] 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.3] 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.4] 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.5] ICAO Annex 10 to the Convention on International Civil Aviation: "Aeronautical
Telecommunications, Volume III: Communication Systems, Part I: Digital Data Communication
Systems, Chapter 6", inc. Amendment 88-A (applicable from 14/11/2013).
[i.6] ISO/IEC 7498-1 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model: The Basic Model".
[i.7] ISO/IEC 10731 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model - Conventions for the definition of OSI services".
[i.8] 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.9] 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.10] EC Regulation No 552/2004 of the European Parliament and of the Council of 10 March 2004 on
the interoperability of the European Air Traffic Management network (interoperability
Regulation), OJ L 96, 31.03.2004, p. 26 as amended by Regulation (EC) No 1070/2009, OJ L 300,
14.11.2009, p. 34.
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.2],
ISO/IEC 7498-1 [i.6], ISO/IEC 10731 [i.7] and the following apply:
adjacent channel power: amount of the modulated RF signal power which falls within a given adjacent channel
NOTE: Adjacent channel power includes discrete spurious, signal sidebands, and noise density (including phase
noise) at the transmitter output.
Bit Error Rate (BER): ratio between the number of erroneous bits received and the total number of bits received
data rate: maximum amount of data that can be transmitted in a specified amount of time, typically expressed as bits
per second
NOTE: The nominal data rate for VDL Mode 4 is 19 200 bits/s.
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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 base station: aeronautical station equipment, in the aeronautical mobile service, for use with an external
antenna and intended for use at a fixed location
integral antenna equipment: radio communications equipment with an antenna integrated into the equipment without
the use of an external connector and considered to be part of the equipment
NOTE: An integral antenna may be internal or external to the equipment. In equipment of this type, a 50 Ω RF
connection point is provided for test purposes.
non-integral antenna equipment: radio communications equipment with a connector intended for connection to an
antenna
radiated measurements: measurements which involve the measurement of a radiated field
reference signal level: signal level used in the receiver performance specifications except otherwise stated
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.
station: VDL Mode 4 Specific Services (VSS)-capable entity
NOTE: A station may be either a mobile station or a ground station. A station is a physical entity that transmits
and receives bursts over the RF interface (either A/G or A/A) and comprises, at a minimum: a physical
layer, media access control sublayer, and a unique VSS address. A station which is also a DLS station has
the same address.
VDL Mode 4: VHF data link using a Gaussian Filtered Frequency Shift Keying modulation scheme and self-organizing
time division multiple access
VDL Mode 4 station: physical entity that transmits and receives VDL Mode 4 bursts over the RF interface (either A/G
or A/A) and comprises, as a minimum: a physical layer, Media Access Control sublayer and a VSS sublayer
NOTE: A VDL Mode 4 station may either be a mobile VDL Mode 4 station or a ground VDL Mode 4 station.
VDL Station: VDL-capable entity that transmits and receives VDL bursts over the RF interface (either A/G or A/A)
and comprises, as a minimum: a physical layer, Media Access Control sublayer and a VSS sublayer
NOTE: A station may either be a mobile station or a ground station. A station is a physical entity that transmits
and receives frames over the air/ground (A/G) interface and comprises, at a minimum: a physical layer,
media access control sublayer, and a unique DLS address. The particular initiating process (i.e. DLE or
LME) in the station cannot be determined by the source DLS address. The particular destination process
cannot be determined by the destination DLS address. These can be determined only by the context of
these frames as well as the current operational state of the DLEs.
VDL System: VDL-capable entity comprising one or more stations and the associated VDL management entity
NOTE: A system may either be a mobile system or a ground system.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
A/A Air-to-Air
A/G Air/Ground
BER Bit Error Rate
DLE Data Link Entity
DLS Data Link Service
EASA European Aviation Safety Agency
EN European Norm
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10 Draft ETSI EN 301 842-5 V2.1.0 (2016-06)
GFSK Gaussian Filtered Frequency Shift Keying
ICAO International Civil Aviation Organization
IPR Intellectual Property Rights
ISO International Organization for Standardization
LME Link Management Entity
RF Radio Frequency
SARPs Standards And Recommended Practices
VDL VHF Digital Link
VHF Very High Frequency
VSS VDL Mode 4 Specific Services
VSWR Voltage Standing Wave Ratio
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 Receiver requirements
4.2.1.1 General: Reference Signal
The reference signal level applied at the receiver input for all the receiver requirements below described, unless
otherwise stated, shall be as specified in clause 6.1.3 of ETSI EN 301 842-1 [1].
4.2.1.2 Sensitivity
4.2.1.2.1 Definition
The radio receiver sensitivity is defined as the power level at the receiver input at which the Bit Error Ratio (BER) is as
specified in clause 6.1.2 of ETSI EN 301 842-1 [1].
4.2.1.2.2 Limits
The sensitivity shall be as specified in ETSI EN 301 842-1 [1], clause 6.1.4.
4.2.1.2.3 Conformance
To demonstrate conformance, the equipment shall pass the test procedure described in ET
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