VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment;Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment; Part 1: Physical layer

The present document applies to the following radio equipment types:
• Very High Frequency (VHF) Digital Link (VDL) Mode 4 aeronautical mobile (airborne) radio transmitters, transceivers and receivers for air-ground and air-air 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 VDL SARPs [2].
The present technical document provides part 1 of the technical specifications.
The present document is designed to ensure that equipment certified to it will be compatible with the relevant ICAO VDL SARPs [2] and ICAO VDL4 Technical Manual [1].
Manufacturers should note that in future the tuning range for the transmitter and receiver may cover any 25 kHz channel from 108,000 MHz to 111,975 MHz.
The present document applies to "aeronautical mobile (airborne and in some cases ground vehicles)" equipment which will hereinafter be referred to as "mobile" equipment.
The scope of the present document is limited to mobile stations. The equivalent specification for ground stations is ETSI EN 301 842 [i.7].
The VDL Mode 4 system provides digital communication exchanges between aircraft and ground-based systems and other aircraft supporting surveillance and communication applications. The supported modes of communication include:
• broadcast and point-to-point communication;
• broadcast services including Automatic Dependent Surveillance - Broadcast (ADS-B), Traffic Information Service - Broadcast (TIS-B) and Flight Information Service - Broadcast (FIS-B) capabilities;
• air-air and ground-air services;
• operation without ground infrastructure.
The present document is derived from the specifications:
• ICAO VDL4 Technical Manual [1] and ICAO VDL SARPs [2] produced under the auspices of the
International Civil Aviation Organization (ICAO).
• Other relevant standards as defined in clause 2.
It is envisaged that manufacturers may provide equipment supporting:
• broadcast services only;
• point-to-point services only;
• both broadcast and point-to-point services.
The present document deals with tests of the physical layer necessary to support all types of equipment.
The present document is organized as follows:
• clause 2 provides references to relevant documents;
• clause 3 provides general definitions, abbreviations and symbols used;
• clause 4 provides a general description and architecture of VDL Mode 4;
• clause 5 provides functional specifications applicable to the physical layer including transmitter/receiver
requirements and the modulation scheme;
• clause 6 provides VDL Mode 4 equipment requirements;
• clause 7 provides general design requirements;
• clause 8 provides environmental test requirements;
• clause 9 provides detailed test procedures for the physical layer;
• clause 10 provides installed equipment requirements;
• annex A provides a detailed cross-reference to the relevant requirements contained in reference [1];
• annex B provides an assessment of VDL Mode 4 Link Budget;
• annex C provides a Bibliography;
The full physical layer tests are provided which correspond closely to the standard set of tests used for other VDL systems.
NOTE: Flight tests are defined in ETSI EN 302 842-2 [7].
Mandating and recommendation phrases
a) "Shall"
- The use of the word "Shall" indicates a mandated criterion; e.g. compliance with the particular procedure or specification is mandatory and no alternative may be applied.
b) "Should"
- The use of the word "Should" (and phrases such as "It is recommended that...", etc.) indicate that though the procedure or criterion is regarded as the preferred option, alternative procedures, specifications or criteria may be applied, provided that the manufacturer, installer or tester can provide information or data to adequately support and justify the alternative.

Radijska oprema za digitalno povezavo VHF (VDL) zrak-tla in zrak-zrak, 4. način - Tehnične karakteristike in merilne metode za aeronavtično mobilno (letalsko) opremo - 1. del: Fizična plast

Ta dokument se uporablja za radijsko opremo naslednjih vrst:
• aeronavtične mobilne (letalske) radijske oddajnike, oddajnike-sprejemnike in sprejemnike za zelo visokofrekvenčno (VHF) digitalno povezavo (VDL) za komunikacije zrak-tla in zrak-zrak, 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) [2] ICAO za digitalne povezave (VDL).
Ta dokument vsebuje 1. del tehničnih specifikacij.
Ta dokument zagotavlja, da bo oprema, ki bo certificirana v skladu z njim, združljiva z ustreznimi standardi (SARP) [2] ICAO za VDL in tehničnim priročnikom ICAO za VDL4 [1].
Proizvajalci naj bodo pozorni, da razpon uravnavanja za oddajnik in sprejemnik lahko v prihodnje zajema kateri koli kanal 25 kHz od 108.000 MHz do 111.975 MHz.
Ta dokument se nanaša na »aeronavtično mobilno (letalska in v nekaterih primerih tudi kopenska vozila)« opremo, v nadaljnjem besedilu: »mobilna« oprema.
Področje uporabe tega dokumenta je omejeno na mobilne postaje. Enakovredna specifikacija za zemeljske postaje je ETSI EN 301 842 [i.7].
Sistem VDL, 4. način, omogoča izmenjavo podatkovne komunikacije med letalskim plovilom in talnimi sistemi ter drugimi letalskimi plovili, ki podpirajo nadzorne in komunikacijske aplikacije. Podprti načini komunikacije vključujejo:
• radiodifuzija in komunikacija točka-točka;
• radiodifuzijske storitve, vključno z avtomatskim odvisnim nadzorom – difuzijo (ADS-B), difuzijo nadzornih podatkov (TIS-B) in difuzijo informacij za letalstvo (FIS-B);
• storitve zrak-zrak in tla-zrak;
• delovanje brez talne infrastrukture.
Ta dokument izhaja iz naslednjih specifikacij:
• tehničnega priročnika ICAO za VDL4 [1], ter standardih in priporočenih praksah ICAO za VDL [2], ki jih je sestavila
Mednarodna organizacija civilnega letalstva (ICAO)).
• drugih ustreznih standardov, ki so bili določeni v točki 2.
Predvideva se, da lahko proizvajalci zagotovijo opremo, ki podpira:
• izključno radiodifuzijske storitve;
• izključno storitve točka-točka;
• radiodifuzijske storitve in storitve točka-točka.
Ta dokument zajema preskuse fizične plasti, ki so potrebni za podporo vseh vrst opreme.
Ta dokument je organiziran na naslednji način:
• točka 2 vsebuje sklice do ustreznih dokumentov;
• točka 3 vsebuje splošne opredelitve, kratice in simbole, ki se uporabljajo;
• točka 4 vsebuje splošni opis in arhitekturo digitalne povezave VDL, 4. način;
• točka 5 vsebuje funkcionalne specifikacije, ki veljajo za fizično plast, vključno z zahtevami za oddajnik/sprejemnik
in modulacijsko shemo;
• točka 6 vsebuje splošne zahteve za opremo VDL, 4. način;
• točka 7 vsebuje splošne zahteve projekta;
• točka 8 vsebuje zahteve okoljevarstvenega preskusa;
• točka 9 vsebuje podrobne preskusne postopke za fizično plast;
• točka 10 vsebuje zahteve za nameščeno opremo;
• dodatek A vsebuje podrobne sklice do ustreznih zahtev, ki so vključene v sklic [1];
• dodatek B vsebuje oceno povezovalne bilance (link budget) digitalne povezave VDL, 4. način;
• dodatek C vsebuje bibliografijo.
Podani so celotni preskusi fizične plasti, ki se natančno ujemajo s standardnim nizom preskusov, ki se uporabljajo za druge sisteme VDL.
OPOMBA: Letalski preskusi so opredeljeni v ETSI EN 302 842-2 [7].

General Information

Status
Published
Public Enquiry End Date
30-Mar-2015
Publication Date
08-Sep-2015
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Jun-2015
Due Date
14-Aug-2015
Completion Date
09-Sep-2015

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ETSI EN 302 842-1 V1.3.1 (2015-04) - VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment; Part 1: Physical layer
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HQW7HFKQLFDOHTXLSPHQW49.090On-board equipment and instruments35.100.10Physical layer33.060.99Druga oprema za radijske komunikacijeOther equipment for radiocommunicationsICS:Ta slovenski standard je istoveten z:EN 302 842-1 V1.3.1SIST EN 302 842-1 V1.3.1:2015en,fr,de01-oktober-2015SIST EN 302 842-1 V1.3.1:2015SLOVENSKI
STANDARD



SIST EN 302 842-1 V1.3.1:2015



ETSI EN 302 842-1 V1.3.1 (2015-04) VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment; Part 1: Physical layer
EUROPEAN STANDARD SIST EN 302 842-1 V1.3.1:2015



ETSI ETSI EN 302 842-1 V1.3.1 (2015-04) 2
Reference REN/AERO-00019-1 Keywords aeronautical, digital, 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 http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2015. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association. SIST EN 302 842-1 V1.3.1:2015



ETSI ETSI EN 302 842-1 V1.3.1 (2015-04) 3 Contents Intellectual Property Rights . 6 Foreword . 6 Modal verbs terminology . 6 Introduction . 7 1 Scope . 8 2 References . 9 2.1 Normative references . 9 2.2 Informative references . 10 3 Definitions and abbreviations . 11 3.1 Definitions . 11 3.1.1 Basic reference model definitions . 11 3.1.2 Service conventions definitions . 11 3.1.3 General definitions . 11 3.2 Abbreviations . 15 4 General description and architecture of VDL Mode 4 . 16 4.1 General . 16 5 VDL mode 4 physical layer functional specifications . 16 5.1 Overview . 16 5.1.1 Functions . 16 5.1.2 Data reception . 17 5.1.3 Data transmission . 17 5.2 Modulation scheme . 17 6 VDL Mode 4 equipment requirements . 17 6.1 Receiver requirements . 17 6.1.1 Receiver operating range . 17 6.1.2 BER requirement . 17 6.1.3 Reference signal level . 18 6.1.4 Sensitivity . 18 6.1.5 Adjacent channel rejection . 18 6.1.6 Receiver performance in the presence of strong signals inside the VHF aeronautical band . 18 6.1.7 Receiver performance in the presence of strong signals outside the VHF aeronautical band . 19 6.1.8 Desired signal dynamic range . 19 6.1.9 Symbol rate capture range . 19 6.1.10 Frequency capture range . 20 6.1.11 Doppler rate . 20 6.1.12 Co-channel interference . 20 6.1.13 Conducted spurious emission . 20 6.1.14 FM broadcast intermodulation . 20 6.1.14.1 Radio frequencies in the band 112,000 MHz to 137,000 MHz . 20 6.1.15 In-band intermodulation . 20 6.2 Transmitter requirements . 21 6.2.1 Transmitter operating range . 21 6.2.2 Channel bit rate . 21 6.2.3 Manufacturer's declared output power . 21 6.2.4 RF power rise time . 22 6.2.5 RF power release time . 22 6.2.6 Spurious emissions . 22 6.2.7 Adjacent channel power . 23 6.2.8 Wide-band noise . 23 6.2.9 Load VSWR capability . 24 6.2.10 Adjacent channel transient power . 24 6.2.11 Frequency tolerance . 24 6.2.12 Start of transmission . 24 SIST EN 302 842-1 V1.3.1:2015



ETSI ETSI EN 302 842-1 V1.3.1 (2015-04) 4 6.2.13 Structure of bursts . 24 6.3 Transceiver requirements . 25 6.3.1 Automatic transmitter shut-down . 25 6.3.2 Tuning time . 25 6.3.3 Receiver to transmitter turnaround time . 25 6.3.4 Transmitter to receiver turnaround time . 25 6.3.5 Short power interrupt . 25 6.3.6 Demodulator action. 25 6.3.7 System timing requirements . 25 6.3.8 Reservation table stored in memory . 26 6.3.9 Failure of associated equipment . 26 6.3.10 Simultaneous reception . 26 7 General design requirements . 26 7.1 Controls and indicators . 26 7.2 Class of emission and modulation characteristics . 26 7.3 Warm up . 26 7.4 Airworthiness . 26 7.5 Intended function . 26 7.6 Fire protection . 27 7.7 Operation of controls . 27 7.8 Accessibility of controls . 27 7.9 Effects of tests . 27 7.10 Failure of VDL Mode 4 equipment . 27 7.11 Software management . 27 7.12 Transceiver configuration . 27 7.13 Provision for multiple redundant VDL4 transceivers . 28 7.14 Reception capability . 28 7.15 Transmission capability . 28 7.16 Monitoring of proper operation . 28 7.17 Power-up self test . 29 8 Environmental test requirements . 29 8.1 Introduction . 29 8.2 Receiver . 30 8.3 Transmitter . 32 9 Detailed test procedures for the physical layer . 34 9.1 General requirements . 34 9.1.1 Test conditions . 34 9.1.2 Alignment, adjustment and calibration prior to test . 34 9.1.3 Recording of test results . 34 9.1.4 Connected load . 34 9.1.5 Test instrument precautions . 34 9.1.6 Simultaneous application of two signals to the receiver input . 35 9.1.7 Test frequencies . 35 9.1.8 Equipment configuration . 35 9.1.9 Detailed physical and MAC layer test procedures . 35 9.2 Receiver . 35 9.2.1 BER test . 35 9.2.2 Sensitivity . 37 9.2.3 Adjacent Channel Rejection (ACR) . 37 9.2.4 Rejection of signals in the VHF aeronautical band . 38 9.2.5 Rejection of signals outside the VHF aeronautical band . 39 9.2.6 Desired signal dynamic range . 40 9.2.7 Symbol rate capture range . 40 9.2.8 Frequency capture range . 41 9.2.9 Doppler rate . 41 9.2.10 Co-channel interference . 42 9.2.11 Conducted spurious emission . 42 9.2.12 FM broadcast intermodulation . 43 9.2.13 In-band intermodulation . 44 9.3 Transmitter . 45 SIST EN 302 842-1 V1.3.1:2015



ETSI ETSI EN 302 842-1 V1.3.1 (2015-04) 5 9.3.1 Channel bit rate . 45 9.3.2 Manufacturer's declared output power . 45 9.3.3 RF power rise time . 46 9.3.4 RF power release time . 46 9.3.5 Spurious emissions . 47 9.3.6 Adjacent channel power . 47 9.3.6.1 Method of measurement for the first adjacent channel . 47 9.3.6.2 Method of measurement for the second adjacent channel . 48 9.3.6.3 Method of measurement for the fourth adjacent channel . 49 9.3.6.4 Alternative measurement procedure for Adjacent Channel Power (ACP) . 50 9.3.7 Wideband noise . 51 9.3.8 Load VSWR capability . 52 9.3.9 Adjacent channel transient power . 53 9.3.10 Frequency tolerance . 54 9.4 Transceiver . 54 9.4.1 Tuning time . 54 9.4.2 Receiver to transmitter turn-around time . 54 9.4.3 Transmitter to receiver turn-around time . 55 10 Installed equipment requirements . 55 10.1 Introduction . 55 10.2 Equipment installation . 55 10.2.1 Aircraft environment. 55 10.2.2 Failure protection . 55 10.2.3 Aircraft power source . 55 10.3 Installed equipment performance requirements. 56 10.3.1 Dynamic response . 56 10.3.2 Interference effects . 56 10.3.3 Regular maintenance. 56 10.4 Conditions of test . 56 10.4.1 Power input . 56 10.4.2 Associated equipment or systems . 56 10.4.3 Environment . 56 10.5 Test procedures for installed equipment performance . 56 10.5.1 Ground test procedures . 57 10.5.1.1 Conformity inspection . 57 10.5.1.2 Interference tests . 57 10.5.1.3 Power supply fluctuation test . 57 10.5.1.4 Reception . 57 10.5.1.5 Transmission . 57 10.5.1.6 Functional behaviour tests . 57 10.5.1.7 Interface conformance tests . 58 10.5.2 Flight test procedures . 58 10.5.2.1 Interference effects . 58 10.5.2.2 System performance . 58 Annex A (informative): Cross reference matrix . 60 Annex B (informative): VDL Mode 4 link budget . 63 Annex C (informative): Bibliography . 70 History . 71
SIST EN 302 842-1 V1.3.1:2015



ETSI ETSI EN 302 842-1 V1.3.1 (2015-04) 6 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://ipr.etsi.org). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Aeronautics (AERO). The present document is part 1 of a multi-part deliverable covering the VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment, as identified below: Part 1: "Physical layer"; Part 2: "General description and data link layer"; Part 3: "Additional br
...

ETSI EN 302 842-1 V1.3.1 (2015-04)






EUROPEAN STANDARD
VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment;
Technical characteristics and methods of measurement
for aeronautical mobile (airborne) equipment;
Part 1: Physical layer

---------------------- Page: 1 ----------------------
2 ETSI EN 302 842-1 V1.3.1 (2015-04)



Reference
REN/AERO-00019-1
Keywords
aeronautical, digital, 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
http://portal.etsi.org/tb/status/status.asp
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
and microfilm except as authorized by written permission of ETSI.
The content of the PDF version shall not be modified without the written authorization of ETSI.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2015.
All rights reserved.

TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI

---------------------- Page: 2 ----------------------
3 ETSI EN 302 842-1 V1.3.1 (2015-04)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 10
3 Definitions and abbreviations . 11
3.1 Definitions . 11
3.1.1 Basic reference model definitions . 11
3.1.2 Service conventions definitions . 11
3.1.3 General definitio ns . 11
3.2 Abbreviations . 15
4 General description and architecture of VDL Mode 4 . 16
4.1 General . 16
5 VDL mode 4 physical layer functional specifications . 16
5.1 Overview . 16
5.1.1 Functions . 16
5.1.2 Data reception . 17
5.1.3 Data transmission . 17
5.2 Modulation scheme . 17
6 VDL Mode 4 equipment requirements . 17
6.1 Receiver requirements . 17
6.1.1 Receiver operating range . 17
6.1.2 BER requirement . 17
6.1.3 Reference signal level . 18
6.1.4 Sensitivity . 18
6.1.5 Adjacent channel rejection . 18
6.1.6 Receiver performance in the presence of strong signals inside the VHF aeronautical band . 18
6.1.7 Receiver performance in the presence of strong signals outside the VHF aeronautical band . 19
6.1.8 Desired signal dynamic range . 19
6.1.9 Symbol rate capture range . 19
6.1.10 Frequency capture range . 20
6.1.11 Doppler rate . 20
6.1.12 Co-channel interference . 20
6.1.13 Conducted spurious emission . 20
6.1.14 FM broadcast intermodulation . 20
6.1.14.1 Radio frequencies in the band 112,000 MHz to 137,000 MHz . 20
6.1.15 In-band intermodulation . 20
6.2 Transmitter requirements . 21
6.2.1 Transmitter operating range . 21
6.2.2 Channel bit rate . 21
6.2.3 Manufacturer's declared output power . 21
6.2.4 RF power rise time . 22
6.2.5 RF power release time . 22
6.2.6 Spurious emissions . 22
6.2.7 Adjacent channel power . 23
6.2.8 Wide-band noise . 23
6.2.9 Load VSWR capability . 24
6.2.10 Adjacent channel transient power . 24
6.2.11 Frequency tolerance . 24
6.2.12 Start of transmission . 24
ETSI

---------------------- Page: 3 ----------------------
4 ETSI EN 302 842-1 V1.3.1 (2015-04)
6.2.13 Structure of bursts . 24
6.3 Transceiver requirements . 25
6.3.1 Automatic transmitter shut-down . 25
6.3.2 Tuning time . 25
6.3.3 Receiver to transmitter turnaround time . 25
6.3.4 Transmitter to receiver turnaround time . 25
6.3.5 Short power interrupt . 25
6.3.6 Demodulator action. 25
6.3.7 System timing requirements . 25
6.3.8 Reservation table stored in memory . 26
6.3.9 Failure of associated equipment . 26
6.3.10 Simultaneous reception . 26
7 General design requirements . 26
7.1 Controls and indicators . 26
7.2 Class of emission and modulation characteristics . 26
7.3 Warm up . 26
7.4 Airworthiness . 26
7.5 Intended function . 26
7.6 Fire protection . 27
7.7 Operation of controls . 27
7.8 Accessibility of controls . 27
7.9 Effects of tests . 27
7.10 Failure of VDL Mode 4 equipment . 27
7.11 Software management . 27
7.12 Transceiver configuration . 27
7.13 Provision for multiple redundant VDL4 transceivers . 28
7.14 Reception capability . 28
7.15 Transmission capability . 28
7.16 Monitoring of proper operation . 28
7.17 Power-up self test . 29
8 Environmental test requirements . 29
8.1 Introduction . 29
8.2 Receiver . 30
8.3 Transmitter . 32
9 Detailed test procedures for the physical layer . 34
9.1 General requirements . 34
9.1.1 Test conditions . 34
9.1.2 Alignment, adjustment and calibration prior to test . 34
9.1.3 Recording of test results . 34
9.1.4 Connected load . 34
9.1.5 Test instrument precautions . 34
9.1.6 Simultaneous application of two signals to the receiver input . 35
9.1.7 Test frequencies . 35
9.1.8 Equipment configuration . 35
9.1.9 Detailed physical and MAC layer test procedures . 35
9.2 Receiver . 35
9.2.1 BER test . 35
9.2.2 Sensitivity . 37
9.2.3 Adjacent Channel Rejection (ACR) . 37
9.2.4 Rejection of signals in the VHF aeronautical band . 38
9.2.5 Rejection of signals outside the VHF aeronautical band . 39
9.2.6 Desired signal dynamic range . 40
9.2.7 Symbol rate capture range . 40
9.2.8 Frequency capture range . 41
9.2.9 Doppler rate . 41
9.2.10 Co-channel interference . 42
9.2.11 Conducted spurious emission . 42
9.2.12 FM broadcast intermodulation . 43
9.2.13 In-band intermodulation . 44
9.3 Transmitter . 45
ETSI

---------------------- Page: 4 ----------------------
5 ETSI EN 302 842-1 V1.3.1 (2015-04)
9.3.1 Channel bit rate . 45
9.3.2 Manufacturer's declared output power . 45
9.3.3 RF power rise time . 46
9.3.4 RF power release time . 46
9.3.5 Spurious emissions . 47
9.3.6 Adjacent channel power . 47
9.3.6.1 Method of measurement for the first adjacent channel . 47
9.3.6.2 Method of measurement for the second adjacent channel . 48
9.3.6.3 Method of measurement for the fourth adjacent channel . 49
9.3.6.4 Alternative measurement procedure for Adjacent Channel Power (ACP) . 50
9.3.7 Wideband noise . 51
9.3.8 Load VSWR capability . 52
9.3.9 Adjacent channel transient power . 53
9.3.10 Frequency tolerance . 54
9.4 Transceiver . 54
9.4.1 Tuning time . 54
9.4.2 Receiver to transmitter turn-around time . 54
9.4.3 Transmitter to receiver turn-around time . 55
10 Installed equipment requirements . 55
10.1 Introduction . 55
10.2 Equipment installation . 55
10.2.1 Aircraft environment. 55
10.2.2 Failure protection . 55
10.2.3 Aircraft power source . 55
10.3 Installed equipment performance requirements. 56
10.3.1 Dynamic response . 56
10.3.2 Interference effects . 56
10.3.3 Regular maintenance. 56
10.4 Conditions of test . 56
10.4.1 Power input . 56
10.4.2 Associated equipment or systems . 56
10.4.3 Environment . 56
10.5 Test procedures for installed equipment performance . 56
10.5.1 Ground test procedures . 57
10.5.1.1 Conformity inspection . 57
10.5.1.2 Interference tests . 57
10.5.1.3 Power supply fluctuation test . 57
10.5.1.4 Reception . 57
10.5.1.5 Transmission . 57
10.5.1.6 Functional behaviour tests . 57
10.5.1.7 Interface conformance tests . 58
10.5.2 Flight test procedures . 58
10.5.2.1 Interference effects . 58
10.5.2.2 System performance . 58
Annex A (informative): Cross reference matrix . 60
Annex B (informative): VDL Mode 4 link budget . 63
Annex C (informative): Bibliography . 70
History . 71

ETSI

---------------------- Page: 5 ----------------------
6 ETSI EN 302 842-1 V1.3.1 (2015-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (EN) has been produced by ETSI Technical Committee Aeronautics (AERO).
The present document is part 1 of a multi-part deliverable covering the VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne)
equipment, as identified below:
Part 1: "Physical layer";
Part 2: "General description and data link layer";
Part 3: "Additional broadcast aspects";
Part 4: "Point-to-point functions".
The present document is accompa
...

Draft ETSI EN 302 842-1 V1.3.0 (2014-12)






EUROPEAN STANDARD
VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment;
Technical characteristics and methods of measurement
for aeronautical mobile (airborne) equipment;
Part 1: Physical layer

---------------------- Page: 1 ----------------------
2 Draft ETSI EN 302 842-1 V1.3.0 (2014-12)



Reference
REN/AERO-00019-1
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

---------------------- Page: 2 ----------------------
3 Draft ETSI EN 302 842-1 V1.3.0 (2014-12)
Contents
Intellectual Property Rights . 6
Foreword . 6
Modal verbs terminology . 6
Introduction . 7
1 Scope . 8
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 10
3 Definitions and abbreviations . 11
3.1 Definitions . 11
3.1.1 Basic reference model definitions . 11
3.1.2 Service conventions definitions . 11
3.1.3 General definitio ns . 11
3.2 Abbreviations . 15
4 General description and architecture of VDL Mode 4 . 16
4.1 General . 16
5 VDL mode 4 physical layer functional specifications . 16
5.1 Overview . 16
5.1.1 Functions . 17
5.1.2 Data reception . 17
5.1.3 Data transmission . 17
5.2 Modulation scheme . 17
6 VDL Mode 4 equipment requirements . 17
6.1 Receiver requirements . 17
6.1.1 Receiver operating range . 17
6.1.2 BER requirement . 18
6.1.3 Reference signal level . 18
6.1.4 Sensitivity . 18
6.1.5 Adjacent channel rejection . 18
6.1.6 Receiver performance in the presence of strong signals inside the VHF aeronautical band . 19
6.1.7 Receiver performance in the presence of strong signals outside the VHF aeronautical band . 19
6.1.8 Desired signal dynamic range . 20
6.1.9 Symbol rate capture range . 20
6.1.10 Frequency capture range . 20
6.1.11 Doppler rate . 20
6.1.12 Co-channel interference . 20
6.1.13 Conducted spurious emission . 21
6.1.14 FM broadcast intermodulation . 21
6.1.14.1 Radio frequencies in the band 112,000 MHz to 137,000 MHz . 21
6.1.15 In-band intermodulation . 21
6.2 Transmitter requirements . 22
6.2.1 Transmitter operating range . 22
6.2.2 Channel bit rate . 22
6.2.3 Manufacturer's declared output power . 22
6.2.4 RF power rise time . 22
6.2.5 RF power release time . 23
6.2.6 Spurious emissions . 23
6.2.7 Adjacent channel power . 24
6.2.8 Wide-band noise . 24
6.2.9 Load VSWR capability . 25
6.2.10 Adjacent channel transient power . 25
ETSI

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4 Draft ETSI EN 302 842-1 V1.3.0 (2014-12)
6.2.11 Frequency tolerance . 25
6.2.12 Start of transmission . 25
6.2.13 Structure of bursts . 25
6.3 Transceiver requirements . 26
6.3.1 Automatic transmitter shut-down . 26
6.3.2 Tuning time . 26
6.3.3 Receiver to transmitter turnaround time . 26
6.3.4 Transmitter to receiver turnaround time . 26
6.3.5 Short power interrupt . 27
6.3.6 Demodulator action. 27
6.3.7 System timing requirements . 27
6.3.8 Reservation table stored in memory . 27
6.3.9 Failure of associated equipment . 27
6.3.10 Simultaneous reception . 27
7 General design requirements . 27
7.1 Controls and indicators . 27
7.2 Class of emission and modulation characteristics . 28
7.3 Warm up . 28
7.4 Airworthiness . 28
7.5 Intended function . 28
7.6 Fire protection . 28
7.7 Operation of controls . 28
7.8 Accessibility of controls . 28
7.9 Effects of tests . 28
7.10 Failure of VDL Mode 4 equipment . 28
7.11 Software management . 29
7.12 Transceiver configuration . 29
7.13 Provision for multiple redundant VDL4 transceivers . 29
7.14 Reception capability . 29
7.15 Transmission capability . 29
7.16 Monitoring of proper operation . 30
7.17 Power-up self test . 30
8 Environmental test requirements . 30
8.1 Introduction . 30
8.2 Receiver . 32
8.3 Transmitter . 34
9 Detailed test procedures for the physical layer . 36
9.1 General requirements . 36
9.1.1 Test conditions . 36
9.1.2 Alignment, adjustment and calibration prior to test . 36
9.1.3 Recording of test results . 36
9.1.4 Connected load . 36
9.1.5 Test instrument precautions . 36
9.1.6 Simultaneous application of two signals to the receiver input . 37
9.1.7 Test frequencies . 37
9.1.8 Equipment configuration . 37
9.1.9 Detailed physical and MAC layer test procedures . 37
9.2 Receiver . 37
9.2.1 BER test . 37
9.2.2 Sensitivity . 39
9.2.3 Adjacent Channel Rejection (ACR) . 40
9.2.4 Rejection of signals in the VHF aeronautical band . 40
9.2.5 Rejection of signals outside the VHF aeronautical band . 41
9.2.6 Desired signal dynamic range . 42
9.2.7 Symbol rate capture range . 42
9.2.8 Frequency capture range . 43
9.2.9 Doppler rate . 43
9.2.10 Co-channel interference . 44
9.2.11 Conducted spurious emission . 44
9.2.12 FM broadcast intermodulation . 45
ETSI

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5 Draft ETSI EN 302 842-1 V1.3.0 (2014-12)
9.2.13 In-band intermodulation . 46
9.3 Transmitter . 47
9.3.1 Channel bit rate . 47
9.3.2 Manufacturer's declared output power . 47
9.3.3 RF power rise time . 48
9.3.4 RF power release time . 48
9.3.5 Spurious emissions . 49
9.3.6 Adjacent channel power . 49
9.3.6.1 Method of measurement for the first adjacent channel . 49
9.3.6.2 Method of measurement for the second adjacent channel . 50
9.3.6.3 Method of measurement for the fourth adjacent channel . 51
9.3.6.4 Alternative measurement procedure for Adjacent Channel Power (ACP) . 52
9.3.7 Wideband noise . 53
9.3.8 Load VSWR capability . 54
9.3.9 Adjacent channel transient power . 55
9.3.10 Frequency tolerance . 56
9.4 Transceiver . 56
9.4.1 Tuning time . 56
9.4.2 Receiver to transmitter turn-around time . 56
9.4.3 Transmitter to receiver turn-around time . 57
10 Installed equipment requirements . 57
10.1 Introduction . 57
10.2 Equipment installation . 57
10.2.1 Aircraft environment. 57
10.2.2 Failure protection . 57
10.2.3 Aircraft power source . 58
10.3 Installed equipment performance requirements. 58
10.3.1 Dynamic response . 58
10.3.2 Interference effects . 58
10.3.3 Regular maintenance. 58
10.4 Conditions of test . 58
10.4.1 Power input . 58
10.4.2 Associated equipment or systems . 58
10.4.3 Environment . 58
10.5 Test procedures for installed equipment performance . 59
10.5.1 Ground test procedures . 59
10.5.1.1 Conformity inspection . 59
10.5.1.2 Interference tests . 59
10.5.1.3 Power supply fluctuation test . 59
10.5.1.4 Reception . 59
10.5.1.5 Transmission . 59
10.5.1.6 Functional behaviour tests . 60
10.5.1.7 Interface conformance tests . 60
10.5.2 Flight test procedures . 60
10.5.2.1 Interference effects . 60
10.5.2.2 System performance . 61
Annex A (informative): Cross reference matrix . 62
Annex B (informative): VDL Mode 4 link budget . 65
Annex C (informative): Bibliography . 73
History . 74

ETSI

---------------------- Page: 5 ----------------------
6 Draft ETSI EN 302 842-1 V1.3.0 (2014-12)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://ipr.etsi.org).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This draft European Standard (EN) has been produced by ETSI Technical Committee Aeronautics (AERO), and is now
submitted for the combined Public Enquiry and Vote phase of the ETSI standards EN Approval Procedure.
The present document is part 1 of a multi-part deliverable covering the VHF air-ground and air-air Digital Link (VDL)
Mode 4 radio equipment; Technical characteristics and methods of measurement for aeronautical mobile (airborne)
equipment, as identified below:
Part 1: "Physical layer";
Part 2: "General description and data link layer";
Part 3:
...

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