SIST EN 301 841-3 V1.1.1:2011

• Abstract:

  The present document applies to VDL Mode 2 ground-air digital communications using Differential Eight Phase Shift; Keying (D8PSK), intended for channel increments of 25 kHz. The VDL Mode 2 system provides data communication; exchanges between aircraft and ground-based systems, operating in the VHF band (117,975 MHz to 137,000 MHz).; The scope of the present document is limited to ground based stations.; NOTE 1: The VDL Mode 2 can be used as an Air/Ground sub-network of the Aeronautical Telecommunication; Network (ATN) using a band with AM(R)S spectrum allocation.; The present document is intended to cover the provisions of Directive 1999/5/EC [i.2] (R&TTE Directive), article 3.2,; which states that "... radio equipment shall be so constructed that it effectively uses the spectrum allocated to; terrestrial/space radio communications and orbital resources so as to avoid harmful interference".; 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 R&TTE Directive as well as essential requirements under the Single European Sky; Interoperability Regulation [i.3] (as amended) and related implementing rules may apply to equipment within the scope; of the present document.

• Status: Published
• Publication Date: 16-Nov-2011
• ICS: 33.060.99 - Other equipment for radiocommunications
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 16-Nov-2011
• Due Date: 21-Jan-2012
• Completion Date: 17-Nov-2011
• Directive: 1999/5/EC - Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity
• Directive:

  ---

  TRRTP124 - Splošni akt o načrtu uporabe radijskih frekvenc (NURF-4)
• Mandate: M/405
• Ref Project: ETSI EN 301 841-3 V1.1.1 (2011-11) - VHF air-ground Digital Link (VDL) Mode 2; Technical characteristics and methods of measurement for ground-based equipment; Part 3: Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive

Overview

SIST EN 301 841-3 V1.1.1:2011 specifies the technical characteristics and methods of measurement for ground-based equipment operating in the VHF air-ground Digital Link (VDL) Mode 2. This standard, developed by SIST and harmonized with ETSI EN 301 841-3, targets ground stations facilitating digital communications between aircraft and ground infrastructure. VDL Mode 2, using Differential Eight Phase Shift Keying (D8PSK) and 25 kHz channel spacing, operates within the 117.975 MHz to 137.000 MHz VHF aeronautical band. The document addresses essential requirements of article 3.2 of the R&TTE Directive, ensuring efficient spectrum use and the avoidance of harmful interference.

Key Topics

• VDL Mode 2 Ground Station Characteristics

  • Specifies the operation of ground-based VDL Mode 2 equipment in the aeronautical VHF band.
  • Applies exclusively to ground stations, not airborne systems.

• Channel Access and Modulation

  • Details the use of Differential Eight Phase Shift Keying (D8PSK) with standardized 25 kHz channel increments.
  • Ensures compatibility and interoperability within the Aeronautical Telecommunication Network (ATN).

• Spectrum Utilization and Interference Avoidance

  • Enforces compliance with spectrum allocations for AM(R)S (Aeronautical Mobile (Route) Service).
  • Implements requirements to minimize adjacent channel interference and spurious emissions.

• Conformance and Testing Methods

  • Outlines necessary measurement methods and conformance test suites covering frequency accuracy, output power, sensitivity, and emissions.
  • Addresses operational environmental profiles and the necessity for compliance in varying conditions.

• Alignment with Regulatory Frameworks

  • Harmonized to fulfill requirements under the European R&TTE Directive (1999/5/EC) article 3.2.
  • Supports Single European Sky Interoperability Regulation mandates.

Applications

The standard is vital for:

• Aeronautical Communication Infrastructure

  • Ensures reliable data transmission between air traffic control and aircraft, which is critical for flight safety and the management of increasing air traffic volumes.

• Ground Station Manufacturers and System Integrators

  • Provides a benchmark for equipment development, testing, and certification.
  • Facilitates conformity to European regulatory requirements, streamlining market entry and equipment approval processes.

• Regulatory Authorities

  • Offers a clear framework for assessing equipment compatibility, operational efficiency, and interference prevention within the VHF band.

• Network Operators

  • Assists in selecting compliant equipment, ensuring seamless integration with existing ATN sub-networks and securing robust communications for aviation operations.

Related Standards

For comprehensive adherence and system integration, reference should also be made to:

• EN 301 841-1: Physical layer and MAC sub-layer requirements for VDL Mode 2 ground-based equipment.
• EN 300 113-1: Electromagnetic compatibility and radio spectrum matters for land mobile radio equipment with antenna connectors.
• EN 301 841-2: Upper layer protocols for VDL Mode 2.
• Single European Sky Interoperability Regulation (EC 552/2004): Mandates interoperability standards for ATM network equipment.
• Directive 1999/5/EC (R&TTE Directive): Essential requirements for radio equipment, focusing on spectrum use and avoidance of harmful interference.

Practical Value

Adhering to SIST EN 301 841-3 V1.1.1:2011 ensures aeronautical VHF ground stations are capable, reliable, and compliant with European regulatory requirements for spectrum usage and interference management. Manufacturers, operators, and regulators benefit from a standardized, measurable approach to VDL Mode 2 communications, facilitating increased safety, interoperability, and efficiency in civil aviation communication networks.

Final draft ETSI EN 301 841-3 V1.1.1 (2011-07)
Harmonized European Standard
VHF air-ground Digital Link (VDL) Mode 2;
Technical characteristics and methods of measurement
for ground-based equipment;
Part 3: Harmonized EN covering the essential requirements
of article 3.2 of the R&TTE Directive

2 Final draft ETSI EN 301 841-3 V1.1.1 (2011-07)

Reference
DEN/ERM-JTFEA-006
Keywords
aeronautical, AM, DSB, radio, testing, VHF
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

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

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the 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:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2011.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 Final draft ETSI EN 301 841-3 V1.1.1 (2011-07)
Contents
Intellectual Property Rights . 5
Foreword . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 Technical requirements specifications . 8
4.1 Environmental profile . 8
4.2 Conformance requirements . 9
4.2.1 Transmitter requirements . 9
4.2.1.1 Frequency error . 9
4.2.1.1.1 Requirement . 9
4.2.1.1.2 Conformance . 9
4.2.1.2 Manufacturer's declared output power . 9
4.2.1.2.1 Requirement . 9
4.2.1.2.2 Conformance . 9
4.2.1.3 Adjacent channel power . 9
4.2.1.3.1 Requirement . 9
4.2.1.3.2 Conformance . 9
4.2.1.4 Conducted spurious emissions . 9
4.2.1.4.1 Requirement . 9
4.2.1.4.2 Conformance . 9
4.2.1.5 Cabinet radiation . 9
4.2.1.5.1 Requirement . 9
4.2.1.5.2 Conformance . 9
4.2.1.6 Void. 10
4.2.1.7 Intermodulation attenuation . 10
4.2.1.7.1 Requirements . 10
4.2.1.7.2 Conformance . 10
4.2.1.8 RF power release time . 10
4.2.1.8.1 Requirement . 10
4.2.1.8.2 Conformance . 10
4.2.1.9 Void. 10
4.2.1.10 Transient behaviour of the transmitter . 10
4.2.1.10.1 Receiver to transmitter turn-around time . 10
4.2.1.10.2 Transmitter to receiver turn-around time . 10
4.2.1.11 Modulation Accuracy - Symbol constellation error . 10
4.2.1.11.1 Requirement . 10
4.2.1.11.2 Conformance . 11
4.2.2 Receiver requirements . 11
4.2.2.1 Sensitivity . 11
4.2.2.1.1 Requirement . 11
4.2.2.1.2 Conformance . 11
4.2.2.2 Co-channel interference . 11
4.2.2.2.1 Requirement . 11
4.2.2.2.2 Conformance . 11
4.2.2.3 First adjacent channel rejection . 11
4.2.2.3.1 Requirement . 11
4.2.2.3.2 Conformance . 11
ETSI
4 Final draft ETSI EN 301 841-3 V1.1.1 (2011-07)
4.2.2.4 Spurious response rejection of signals within the VHF aeronautical band . 11
4.2.2.4.1 Requirement . 11
4.2.2.4.2 Conformance . 11
4.2.2.5 Spurious response rejection of signals outside the VHF aeronautical band . 11
4.2.2.5.1 Requirement . 11
4.2.2.5.2 Conformance . 11
4.2.2.6 In-band Intermodulation response rejection . 12
4.2.2.6.1 Requirement . 12
4.2.2.6.2 Conformance . 12
4.2.2.7 Blocking or desensitization . 12
4.2.2.7.1 Requirement . 12
4.2.2.7.2 Conformance . 12
4.2.2.8 Conducted spurious emission . 12
4.2.2.8.1 Requirement . 12
4.2.2.8.2 Conformance . 12
4.2.2.9 Cabinet radiation . 12
4.2.2.9.1 Requirement . 12
4.2.2.9.2 Conformance . 12
5 Testing for compliance with technical requirements . 12
5.1 Environmental conditions for testing . 12
5.1.1 Normal and extreme test conditions. 12
5.1.2 Test power source . 13
5.2 Interpretation of the measurement results . 13
5.3 Essential radio test suites . 14
5.3.1 Transmitter test specifications . 14
5.3.1.1 Frequency error . 14
5.3.1.2 Manufacturer's declared output power . 14
5.3.1.3 Adjacent channel power . 14
5.3.1.4 Conducted Spurious emissions . 14
5.3.1.5 Cabinet Radiation . 14
5.3.1.6 Void. 14
5.3.1.7 Inter-modulation attenuation . 14
5.3.1.8 RF power release time . 14
5.3.1.9 Void. 14
5.3.1.10 Transient behaviour of the transmitter . 14
5.3.1.10.1 Receiver to transmitter turn-around time . 14
5.3.1.10.2 Transmitter to receiver turn-around time . 14
5.3.1.11 Modulation accuracy - Symbol constellation error . 14
5.3.2 Receiver test specifications . 15
5.3.2.1 Sensitivity . 15
5.3.2.2 Co-channel interference . 15
5.3.2.3 Adjacent channel rejection . 15
5.3.2.4 Spurious response rejection of signals within the VHF aeronautical band . 15
5.3.2.5 Spurious response rejection of signals outside the VHF aeronautical band . 15
5.3.2.6 In-band Intermodulation rejection . 15
5.3.2.7 Blocking or desensitization . 15
5.3.2.8 Conducted spurious emission . 15
5.3.2.9 Cabinet Radiation . 15
Annex A (normative): HS Requirements and conformance Test specifications Table
(HS-RTT) . 16
Annex B (informative): The EN title in the official languages . 18
Annex C (informative): Bibliography . 19
History . 20

ETSI
5 Final draft ETSI EN 301 841-3 V1.1.1 (2011-07)
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 final draft Harmonized European Standard (EN) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM), and is now submitted for the ETSI standards
One-step Approval Procedure.
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC [i.5] (as amended) laying down a procedure for the provision of information in the
field of technical standards and regulations.
The title and reference to the present document are intended to be included in the publication in the Official Journal of
the European Union of titles and references of Harmonized Standard under the Directive 1999/5/EC [i.2].
See article 5.1 of Directive 1999/5/EC [i.2] for information on presumption of conformity and Harmonized Standards or
parts thereof the references of which have been published in the Official Journal of the European Union.
The requirements relevant to Directive 1999/5/EC [i.2] are summarized in annex A.
The present document is part 3 of a multi-part deliverable covering VHF air-ground Digital Link (VDL) Mode 2;
Technical characteristics and methods of measurement for ground-based equipment, as identified below:
Part 1: "Physical layer and MAC sub-layer";
Part 2: "Upper layers";
Part 3: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive".

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): 6 months after doa

Introduction
The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to
cover all radio and telecommunications terminal equipment within the scope of the R&TTE Directive [i.2]. The
modular structure is shown in EG 201 399 [i.4].
ETSI
6 Final draft ETSI EN 301 841-3 V1.1.1 (2011-07)
1 Scope
The present document applies to VDL Mode 2 ground-air digital communications using Differential Eight Phase Shift
Keying (D8PSK), intended for channel increments of 25 kHz. The VDL Mode 2 system provides data communication
exchanges between aircraft and ground-based systems, operating in the VHF band (117,975 MHz to 137,000 MHz).
The scope of the present document is limited to ground based stations.
NOTE 1: The VDL Mode 2 can be used as an Air/Ground sub-network of the Aeronautical Telecommunication
Network (ATN) using a band with AM(R)S spectrum allocation.
The present document is intended to cover the provisions of Directive 1999/5/EC [i.2] (R&TTE Directive), article 3.2,
which states that ". radio equipment shall be so constructed that it effectively uses the spectrum allocated to
terrestrial/space radio communications and orbital resources so as to avoid harmful interference".
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 R&TTE Directive as well as essential requirements under the Single European Sky
Interoperability Regulation [i.3] (as amended) and related implementing rules may apply to equipment within the scope
of the present document.
NOTE 2: A list of such ENs is included on the web site http://www.newapproach.org.
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] ETSI EN 301 841-1 (V1.3.1): "VHF air-ground Digital Link (VDL) Mode 2; Technical
characteristics and methods of measurement for ground-based equipment; Part 1: Physical layer
and MAC sub-layer".
[2] ETSI EN 300 113-1 (V1.6.2): "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
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] ETSI TR 100 028 (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
7 Final draft ETSI EN 301 841-3 V1.1.1 (2011-07)
[i.2] Directive 1999/5/EC of the European
...

Harmonized European Standard
VHF air-ground Digital Link (VDL) Mode 2;
Technical characteristics and methods of measurement
for ground-based equipment;
Part 3: Harmonized EN covering the essential requirements
of article 3.2 of the R&TTE Directive

2 ETSI EN 301 841-3 V1.1.1 (2011-11)

Reference
DEN/ERM-JTFEA-006
Keywords
aeronautical, AM, DSB, radio, testing, VHF
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

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

Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org
The present document may be made available in more than one electronic version or in print. In any case of existing or
perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).
In case of dispute, the reference shall be the printing on ETSI printers of the 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:
http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2011.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
TM
3GPP and LTE™ are Trade Marks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.
ETSI
3 ETSI EN 301 841-3 V1.1.1 (2011-11)
Contents
Intellectual Property Rights . 5
Foreword . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 Technical requirements specifications . 8
4.1 Environmental profile . 8
4.2 Conformance requirements . 8
4.2.1 Transmitter requirements . 8
4.2.1.1 Frequency error . 8
4.2.1.1.1 Requirement . 8
4.2.1.1.2 Conformance . 9
4.2.1.2 Manufacturer's declared output power . 9
4.2.1.2.1 Requirement . 9
4.2.1.2.2 Conformance . 9
4.2.1.3 Adjacent channel power . 9
4.2.1.3.1 Requirement . 9
4.2.1.3.2 Conformance . 9
4.2.1.4 Conducted spurious emissions . 9
4.2.1.4.1 Requirement . 9
4.2.1.4.2 Conformance . 9
4.2.1.5 Cabinet radiation . 9
4.2.1.5.1 Requirement . 9
4.2.1.5.2 Conformance . 9
4.2.1.6 Void. 9
4.2.1.7 Intermodulation attenuation . 9
4.2.1.7.1 Requirements . 9
4.2.1.7.2 Conformance . 10
4.2.1.8 RF power release time . 10
4.2.1.8.1 Requirement . 10
4.2.1.8.2 Conformance . 10
4.2.1.9 Void. 10
4.2.1.10 Transient behaviour of the transmitter . 10
4.2.1.10.1 Receiver to transmitter turn-around time . 10
4.2.1.10.2 Transmitter to receiver turn-around time . 10
4.2.1.11 Modulation Accuracy - Symbol constellation error . 10
4.2.1.11.1 Requirement . 10
4.2.1.11.2 Conformance . 10
4.2.2 Receiver requirements . 10
4.2.2.1 Sensitivity . 10
4.2.2.1.1 Requirement . 10
4.2.2.1.2 Conformance . 11
4.2.2.2 Co-channel interference . 11
4.2.2.2.1 Requirement . 11
4.2.2.2.2 Conformance . 11
4.2.2.3 First adjacent channel rejection . 11
4.2.2.3.1 Requirement . 11
4.2.2.3.2 Conformance . 11
ETSI
4 ETSI EN 301 841-3 V1.1.1 (2011-11)
4.2.2.4 Spurious response rejection of signals within the VHF aeronautical band . 11
4.2.2.4.1 Requirement . 11
4.2.2.4.2 Conformance . 11
4.2.2.5 Spurious response rejection of signals outside the VHF aeronautical band . 11
4.2.2.5.1 Requirement . 11
4.2.2.5.2 Conformance . 11
4.2.2.6 In-band Intermodulation response rejection . 11
4.2.2.6.1 Requirement . 11
4.2.2.6.2 Conformance . 11
4.2.2.7 Blocking or desensitization . 12
4.2.2.7.1 Requirement . 12
4.2.2.7.2 Conformance . 12
4.2.2.8 Conducted spurious emission . 12
4.2.2.8.1 Requirement . 12
4.2.2.8.2 Conformance . 12
4.2.2.9 Cabinet radiation . 12
4.2.2.9.1 Requirement . 12
4.2.2.9.2 Conformance . 12
5 Testing for compliance with technical requirements . 12
5.1 Environmental conditions for testing . 12
5.1.1 Normal and extreme test conditions. 12
5.1.2 Test power source . 12
5.2 Interpretation of the measurement results . 13
5.3 Essential radio test suites . 14
5.3.1 Transmitter test specifications . 14
5.3.1.1 Frequency error . 14
5.3.1.2 Manufacturer's declared output power . 14
5.3.1.3 Adjacent channel power . 14
5.3.1.4 Conducted Spurious emissions . 14
5.3.1.5 Cabinet Radiation . 14
5.3.1.6 Void. 14
5.3.1.7 Inter-modulation attenuation . 14
5.3.1.8 RF power release time . 14
5.3.1.9 Void. 14
5.3.1.10 Transient behaviour of the transmitter . 14
5.3.1.10.1 Receiver to transmitter turn-around time . 14
5.3.1.10.2 Transmitter to receiver turn-around time . 14
5.3.1.11 Modulation accuracy - Symbol constellation error . 14
5.3.2 Receiver test specifications . 15
5.3.2.1 Sensitivity . 15
5.3.2.2 Co-channel interference . 15
5.3.2.3 Adjacent channel rejection . 15
5.3.2.4 Spurious response rejection of signals within the VHF aeronautical band . 15
5.3.2.5 Spurious response rejection of signals outside the VHF aeronautical band . 15
5.3.2.6 In-band Intermodulation rejection . 15
5.3.2.7 Blocking or desensitization . 15
5.3.2.8 Conducted spurious emission . 15
5.3.2.9 Cabinet Radiation . 15
Annex A (normative): HS Requirements and conformance Test specifications Table
(HS-RTT) . 16
Annex B (informative): The EN title in the official languages . 18
Annex C (informative): Bibliography . 19
History . 20

ETSI
5 ETSI EN 301 841-3 V1.1.1 (2011-11)
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 Harmonized European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC [i.5] (as amended) laying down a procedure for the provision of information in the
field of technical standards and regulations.
The title and reference to the present document are intended to be included in the publication in the Official Journal of
the European Union of titles and references of Harmonized Standard under the Directive 1999/5/EC [i.2].
See article 5.1 of Directive 1999/5/EC [i.2] for information on presumption of conformity and Harmonized Standards or
parts thereof the references of which have been published in the Official Journal of the European Union.
The requirements relevant to Directive 1999/5/EC [i.2] are summarized in annex A.
The present document is part 3 of a multi-part deliverable covering VHF air-ground Digital Link (VDL) Mode 2;
Technical characteristics and methods of measurement for ground-based equipment, as identified below:
Part 1: "Physical layer and MAC sub-layer";
Part 2: "Upper layers";
Part 3: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive".

National transposition dates
Date of adoption of this EN: 7 November 2011
Date of latest announcement of this EN (doa): 29 February 2012
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2012
Date of withdrawal of any conflicting National Standard (dow): 31 August 2012

Introduction
The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to
cover all radio and telecommunications terminal equipment within the scope of the R&TTE Directive [i.2]. The
modular structure is shown in EG 201 399 [i.4].
ETSI
6 ETSI EN 301 841-3 V1.1.1 (2011-11)
1 Scope
The present document applies to VDL Mode 2 ground-air digital communications using Differential Eight Phase Shift
Keying (D8PSK), intended for channel increments of 25 kHz. The VDL Mode 2 system provides data communication
exchanges between aircraft and ground-based systems, operating in the VHF band (117,975 MHz to 137,000 MHz).
The scope of the present document is limited to ground based stations.
NOTE 1: The VDL Mode 2 can be used as an Air/Ground sub-network of the Aeronautical Telecommunication
Network (ATN) using a band with AM(R)S spectrum allocation.
The present document is intended to cover the provisions of Directive 1999/5/EC [i.2] (R&TTE Directive), article 3.2,
which states that ". radio equipment shall be so constructed that it effectively uses the spectrum allocated to
terrestrial/space radio communications and orbital resources so as to avoid harmful interference".
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 R&TTE Directive as well as essential requirements under the Single European Sky
Interoperability Regulation [i.3] (as amended) and related implementing rules may apply to equipment within the scope
of the present document.
NOTE 2: A list of such ENs is included on the web site http://www.newapproach.org.
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] ETSI EN 301 841-1 (V1.3.1): "VHF air-ground Digital Link (VDL) Mode 2; Technical
characteristics and methods of measurement for ground-based equipment; Part 1: Physical layer
and MAC sub-layer".
[2] ETSI EN 300 113-1 (V1.6.2): "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
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] ETSI TR 100 028 (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Uncertainties in the measurement of mobile radio equipment characteristics".
ETSI
7 ETSI EN 301 841-3 V1.1.1 (20
...

SLOVENSKI STANDARD
01-december-2011
'LJLWDOQHSRYH]DYH9+)]UDNWOD9'/QDþLQ7HKQLþQHNDUDNWHULVWLNHLQPHULOQH
PHWRGH]DWDOQRRSUHPRGHO+DUPRQL]LUDQL(1NL]DMHPDELVWYHQH]DKWHYH
þOHQDGLUHNWLYH5 77(
VHF air-ground Digital Link (VDL) Mode 2 - Technical characteristics and methods of
measurement for ground-based equipment - Part 3: Harmonized EN covering the
essential requirements of article 3.2 of the R&TTE Directive
Ta slovenski standard je istoveten z: EN 301 841-3 Version 1.1.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Harmonized European Standard
VHF air-ground Digital Link (VDL) Mode 2;
Technical characteristics and methods of measurement
for ground-based equipment;
Part 3: Harmonized EN covering the essential requirements
of article 3.2 of the R&TTE Directive

2 ETSI EN 301 841-3 V1.1.1 (2011-11)

Reference
DEN/ERM-JTFEA-006
Keywords
aeronautical, AM, DSB, radio, testing, VHF
ETSI
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No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 2011.
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ETSI
3 ETSI EN 301 841-3 V1.1.1 (2011-11)
Contents
Intellectual Property Rights . 5
Foreword . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 6
3 Definitions and abbreviations . 7
3.1 Definitions . 7
3.2 Abbreviations . 8
4 Technical requirements specifications . 8
4.1 Environmental profile . 8
4.2 Conformance requirements . 8
4.2.1 Transmitter requirements . 8
4.2.1.1 Frequency error . 8
4.2.1.1.1 Requirement . 8
4.2.1.1.2 Conformance . 9
4.2.1.2 Manufacturer's declared output power . 9
4.2.1.2.1 Requirement . 9
4.2.1.2.2 Conformance . 9
4.2.1.3 Adjacent channel power . 9
4.2.1.3.1 Requirement . 9
4.2.1.3.2 Conformance . 9
4.2.1.4 Conducted spurious emissions . 9
4.2.1.4.1 Requirement . 9
4.2.1.4.2 Conformance . 9
4.2.1.5 Cabinet radiation . 9
4.2.1.5.1 Requirement . 9
4.2.1.5.2 Conformance . 9
4.2.1.6 Void. 9
4.2.1.7 Intermodulation attenuation . 9
4.2.1.7.1 Requirements . 9
4.2.1.7.2 Conformance . 10
4.2.1.8 RF power release time . 10
4.2.1.8.1 Requirement . 10
4.2.1.8.2 Conformance . 10
4.2.1.9 Void. 10
4.2.1.10 Transient behaviour of the transmitter . 10
4.2.1.10.1 Receiver to transmitter turn-around time . 10
4.2.1.10.2 Transmitter to receiver turn-around time . 10
4.2.1.11 Modulation Accuracy - Symbol constellation error . 10
4.2.1.11.1 Requirement . 10
4.2.1.11.2 Conformance . 10
4.2.2 Receiver requirements . 10
4.2.2.1 Sensitivity . 10
4.2.2.1.1 Requirement . 10
4.2.2.1.2 Conformance . 11
4.2.2.2 Co-channel interference . 11
4.2.2.2.1 Requirement . 11
4.2.2.2.2 Conformance . 11
4.2.2.3 First adjacent channel rejection . 11
4.2.2.3.1 Requirement . 11
4.2.2.3.2 Conformance . 11
ETSI
4 ETSI EN 301 841-3 V1.1.1 (2011-11)
4.2.2.4 Spurious response rejection of signals within the VHF aeronautical band . 11
4.2.2.4.1 Requirement . 11
4.2.2.4.2 Conformance . 11
4.2.2.5 Spurious response rejection of signals outside the VHF aeronautical band . 11
4.2.2.5.1 Requirement . 11
4.2.2.5.2 Conformance . 11
4.2.2.6 In-band Intermodulation response rejection . 11
4.2.2.6.1 Requirement . 11
4.2.2.6.2 Conformance . 11
4.2.2.7 Blocking or desensitization . 12
4.2.2.7.1 Requirement . 12
4.2.2.7.2 Conformance . 12
4.2.2.8 Conducted spurious emission . 12
4.2.2.8.1 Requirement . 12
4.2.2.8.2 Conformance . 12
4.2.2.9 Cabinet radiation . 12
4.2.2.9.1 Requirement . 12
4.2.2.9.2 Conformance . 12
5 Testing for compliance with technical requirements . 12
5.1 Environmental conditions for testing . 12
5.1.1 Normal and extreme test conditions. 12
5.1.2 Test power source . 12
5.2 Interpretation of the measurement results . 13
5.3 Essential radio test suites . 14
5.3.1 Transmitter test specifications . 14
5.3.1.1 Frequency error . 14
5.3.1.2 Manufacturer's declared output power . 14
5.3.1.3 Adjacent channel power . 14
5.3.1.4 Conducted Spurious emissions . 14
5.3.1.5 Cabinet Radiation . 14
5.3.1.6 Void. 14
5.3.1.7 Inter-modulation attenuation . 14
5.3.1.8 RF power release time . 14
5.3.1.9 Void. 14
5.3.1.10 Transient behaviour of the transmitter . 14
5.3.1.10.1 Receiver to transmitter turn-around time . 14
5.3.1.10.2 Transmitter to receiver turn-around time . 14
5.3.1.11 Modulation accuracy - Symbol constellation error . 14
5.3.2 Receiver test specifications . 15
5.3.2.1 Sensitivity . 15
5.3.2.2 Co-channel interference . 15
5.3.2.3 Adjacent channel rejection . 15
5.3.2.4 Spurious response rejection of signals within the VHF aeronautical band . 15
5.3.2.5 Spurious response rejection of signals outside the VHF aeronautical band . 15
5.3.2.6 In-band Intermodulation rejection . 15
5.3.2.7 Blocking or desensitization . 15
5.3.2.8 Conducted spurious emission . 15
5.3.2.9 Cabinet Radiation . 15
Annex A (normative): HS Requirements and conformance Test specifications Table
(HS-RTT) . 16
Annex B (informative): The EN title in the official languages . 18
Annex C (informative): Bibliography . 19
History . 20

ETSI
5 ETSI EN 301 841-3 V1.1.1 (2011-11)
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 Harmonized European Standard (EN) has been produced by ETSI Technical Committee Electromagnetic
compatibility and Radio spectrum Matters (ERM).
The present document has been produced by ETSI in response to a mandate from the European Commission issued
under Council Directive 98/34/EC [i.5] (as amended) laying down a procedure for the provision of information in the
field of technical standards and regulations.
The title and reference to the present document are intended to be included in the publication in the Official Journal of
the European Union of titles and references of Harmonized Standard under the Directive 1999/5/EC [i.2].
See article 5.1 of Directive 1999/5/EC [i.2] for information on presumption of conformity and Harmonized Standards or
parts thereof the references of which have been published in the Official Journal of the European Union.
The requirements relevant to Directive 1999/5/EC [i.2] are summarized in annex A.
The present document is part 3 of a multi-part deliverable covering VHF air-ground Digital Link (VDL) Mode 2;
Technical characteristics and methods of measurement for ground-based equipment, as identified below:
Part 1: "Physical layer and MAC sub-layer";
Part 2: "Upper layers";
Part 3: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive".

National transposition dates
Date of adoption of this EN: 7 November 2011
Date of latest announcement of this EN (doa): 29 February 2012
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2012
Date of withdrawal of any conflicting National Standard (dow): 31 August 2012

Introduction
The present document is part of a set of standards developed by ETSI and is designed to fit in a modular structure to
cover all radio and telecommunications terminal equipment within the scope of the R&TTE Directive [i.2]. The
modular structure is shown in EG 201 399 [i.4].
ETSI
6 ETSI EN 301 841-3 V1.1.1 (2011-11)
1 Scope
The present document applies to VDL Mode 2 ground-air digital communications using Differential Eight Phase Shift
Keying (D8PSK), intended for channel increments of 25 kHz. The VDL Mode 2 system provides data communication
exchanges between aircraft and ground-based systems, operating in the VHF band (117,975 MHz to 137,000 MHz).
The scope of the present document is limited to ground based stations.
NOTE 1: The VDL Mode 2 can be used as an Air/Ground sub-network of the Aeronautical Telecommunication
Network (ATN) using a band with AM(R)S spectrum allocation.
The present document is intended to cover the provisions of Directive 1999/5/EC [i.2] (R&TTE Directive), article 3.2,
which states that ". radio equipment shall be so constructed that it effectively uses the spectrum allocated to
terrestrial/space radio communications and orbital resources so as to avoid harmful interference".
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 R&TTE Directive as well as essential requirements under the Single European Sky
Interoperability Regulation [i.3] (as amended) and related implementing rules may apply to equipment within the scope
of the present document.
NOTE 2: A list of such ENs is included on the web site http://www.newapproach.org.
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] ETSI EN 301 841-1 (V1.3.1): "VHF air-ground Digital Link (VDL) Mode 2; Technical
characteristics and methods of measurement for ground-based equipment; Part 1: Physical layer
and MAC sub-layer".
[2] ETSI EN 300 113-1 (V1.6.2): "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
The following referenced documents are not necessary for the application of the present document but they assist t
...