ETSI TS 101 535 V1.1.1 (2010-12)

ETSI TS 101 535 V1.1.1 (2010-12)
Technical Specification


VHF air-ground Digital Link (VDL) Mode 4 radio equipment;
Technical characteristics and methods of
measurement for ground-based equipment

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2 ETSI TS 101 535 V1.1.1 (2010-12)



Reference
DTS/AERO-00009
Keywords
aeronautical, radio, digital, testing, VHF
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3 ETSI TS 101 535 V1.1.1 (2010-12)
Contents
Intellectual Property Rights . 4
Foreword . 4
Introduction . 4
1 Scope . 5
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.1.1 Basic reference model definitions . 7
3.1.2 Service conventions definitions . 7
3.1.3 General definitio ns . 8
3.2 Abbreviations . 9
4 General description and architecture of VDL Mode 4 . 10
4.1 General . 10
4.2 Coverage of the interoperability Regulation. 11
4.3 Scope of interoperability . 12
5 Traceability to interoperability Essential Requirements . 12
5.1 Requirement traceability . 12
Annex A (informative): Bibliography . 13
History . 14

ETSI

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4 ETSI TS 101 535 V1.1.1 (2010-12)
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://webapp.etsi.org/IPR/home.asp).
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 Technical Specification (TS) has been produced by ETSI Technical Committee Aeronautics (AERO).
The present document is accompanied by equivalent airborne standards, EN 302 842-1 [i.5], EN 302 842-2 [i.6],
EN 302 842-3 [i.7], EN 302 842-4 [i.8] and TS 102 842 [i.9], covering the VHF air-ground Digital Link (VDL) Mode 4
radio equipment; Technical characteristics and methods of measurement for airborne equipment.
Introduction
The present document states the technical specifications for Very High Frequency (VHF) Digital Link (VDL) Mode 4
ground-based radio transmitters, transceivers 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 118,000 MHz to 136,975 MHz as defined in ICAO VHF Digital Link (VDL)
Standards and Recommended Practices (SARPs) [2].
The present document may be used to produce tests for the assessment of the performance of the equipment. The
performance of the equipment submitted for type testing should be representative of the performance of the
corresponding production model.
The present document has been written on the assumption that:
• the type test measurements will be performed only once, in an accredited test laboratory, and the
measurements will be accepted by the various authorities in order to grant type approval;
• if equipment available on the market is required to be checked it may be tested in accordance with the
methods of measurement specified in the present document or a documented alternative approved by the
certifying authority;
equipment comply with EN 301 489-22 [3].
ETSI

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5 ETSI TS 101 535 V1.1.1 (2010-12)
1 Scope
The present document applies to the following radio equipment types:
• 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
118,000 MHz to 136,975 MHz as defined in ICAO VHF Digital Link (VDL) Standards and Recommended
Practices (SARPs) [2].
The present document is designed to ensure that equipment will be compatible with the relevant ICAO VHF Digital
Link (VDL) Standards and Recommended Practices (SARPs) [2] and VDL Mode 4 Technical Manual (TM) [1].
The present document does not give a presumption of conformity related to maintenance requirements, safety,
civil/military coordination or environmental constraints.
NOTE: For these ERs, please refer to the Local Air Navigation Service Provider procedures.
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 117,975 MHz.
The scope of the present document is limited to ground stations. The equivalent specification for airborne stations is
EN 302 842-1 [i.5], EN 302 842-2 [i.6], EN 302 842-3 [i.7], EN 302 842-4 [i.8].and TS 102 842 [i.9].
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, air-to-ground, and ground-to-air services;
• operation without ground infrastructure.
The present document is derived from the specifications:
• VDL Mode 4 standards produced under the auspices of the International Civil Aviation Organization
(ICAO) [1] and [2].
• 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 includes:
• clause 2 provides references to relevant documents;
• clause 3 provides general definitions, abbreviations and symbols used;
• clause 4 refers to a general description and architecture of VDL Mode 4 contained in
EN 301 842-2 [5];
• clause 5 provides tables tracing technical requirements specifications applicable to the interoperability
Regulation [i.4];
• annex A provides a Bibliography;
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6 ETSI TS 101 535 V1.1.1 (2010-12)
• a document history.
Mandating and Recommendation Phrases
a) "Shall"
The use of the word "Shall" indicates a mandated criterion; i.e. 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.
2 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.
2.1 Normative references
The following referenced documents are necessary for the application of the present document.
[1] ICAO Doc. 9816 - AN/448(First Edition 2004): "Manual on VHF Digital Link (VDL) Mode 4,
Part 2: Detailed Technical Specifications".
[2] ICAO Annex 10 to the Convention on International Civil Aviation: "Aeronautical
Telecommunications, Volume III: Communication Systems, Part I: Digital Data Communication
Systems, Chapter 6".
[3] ETSI EN 301 489-22 (V1.3.1): "Electromagnetic compatibility and Radio spectrum Matters
(ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services;
Part 22: Specific conditions for ground based VHF aeronautical mobile and fixed radio
equipment".
[4] ETSI EN 301 842-1 (V1.3.2): "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".
[5] ETSI EN 301 842-2 (V1.6.1): "VHF air-ground Digital Link (VDL) Mode 4 radio equipment;
Technical characteristics and methods of measurement for ground-based equipment;
Part 2: General description and data link layer".
2.2 Informative references
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] ISO/IEC 7498-1 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model: The Basic Model".
[i.2] ISO/IEC 10731 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model - Conventions for the definition of OSI services".
ETSI

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7 ETSI TS 101 535 V1.1.1 (2010-12)
[i.3] Regulation (EC) 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 (the interoperability
Regulation), OJ L 96, 31.03.2004 as amended by Regulation (EC) No 1070/2009.
[i.4] Commission Regulation (EC) No 2150/2005 of 2
...