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

SIST EN 301 841-3 V1.1.1:2011 is the Slovenian adoption of the ETSI Harmonized European Standard EN 301 841-3 V1.1.1. It covers VHF air-ground Digital Link (VDL) Mode 2 ground-air digital communications using Differential Eight Phase Shift Keying (D8PSK) for ground-based equipment, and it sets the technical characteristics and measurement methods used to show conformity with article 3.2 of the R&TTE Directive. In practice, it is the document a manufacturer, test lab, or regulator uses when assessing whether a VDL Mode 2 ground-based station uses spectrum effectively and avoids harmful interference.

What does SIST EN 301 841-3 V1.1.1:2011 specify?

SIST EN 301 841-3 V1.1.1:2011 specifies the spectrum-related requirements and test methods for VDL Mode 2 ground-based stations. It is limited to ground based stations operating in the VHF band from 117,975 MHz to 137,000 MHz and intended for channel increments of 25 kHz.

The document is organized into scope, references, definitions and abbreviations, technical requirements, and testing for compliance. Annex A gives the Harmonized Standard Requirements and conformance Test specifications Table (HS-RTT), while Annexes B and C provide the official-language title information and bibliography.

Annex	What it covers
Annex A	HS Requirements and conformance Test specifications Table (HS-RTT) for article 3.2 conformity
Annex B	The EN title in the official languages
Annex C	Bibliography

The scope also notes that other ENs may apply for other essential requirements under article 3 and for interoperability requirements under the Single European Sky framework. For a buyer or integrator, that means this standard is only one part of the full compliance picture for an aeronautical radio installation.

What are the key requirements of SIST EN 301 841-3 V1.1.1:2011?

SIST EN 301 841-3 V1.1.1:2011 focuses on transmitter and receiver performance that affects spectrum use, adjacent-channel operation, and unwanted emissions. The practical task is to verify that the equipment stays within declared limits and can be tested using the methods linked from the standard.

Environmental profile and test conditions

Clause 4.1 requires the supplier to declare an environmental profile, and the equipment must comply within the boundary limits of that declared profile. Clause 5.1 then requires tests at representative points within that profile, with normal and, where stated, extreme test conditions. For a manufacturer, this means the declared operating environment is part of the compliance claim and should match how the product will actually be used.

Transmitter requirements

Clause 4.2.1 covers transmitter requirements such as frequency error, manufacturer's declared output power, adjacent channel power, conducted spurious emissions, cabinet radiation, intermodulation attenuation, RF power release time, transmitter transient behaviour, and modulation accuracy - symbol constellation error. Several of these requirements are taken from EN 301 841-1, while cabinet radiation and intermodulation attenuation also rely on EN 300 113-1.

In practice, these requirements check whether the transmitter lands on the right frequency, radiates the intended power, limits energy outside the assigned channel, and switches cleanly between transmit and receive. That matters because poor transmitter behaviour can create interference even when the desired signal is working.

Clause 4.2.1.7 adds an important operational note for intermodulation attenuation: if the base station equipment is not intended for the special service conditions class, that needs to be stated clearly in the user manual and/or installation manual. That tells installers and operators how the equipment is meant to be deployed.

Receiver requirements

Clause 4.2.2 covers receiver sensitivity, co-channel interference, first adjacent channel rejection, spurious response rejection inside and outside the VHF aeronautical band, in-band intermodulation response rejection, blocking or desensitization, conducted spurious emission, and cabinet radiation. Most receiver limits are referenced to EN 301 841-1, with blocking or desensitization and cabinet radiation taken from EN 300 113-1.

These checks show whether the receiver can hear the wanted signal in the presence of other transmitters and unwanted RF energy. For airport and network operators, that matters because the equipment has to keep working in a crowded VHF environment.

Compliance testing and uncertainty

Clause 5 links each requirement to a test specification and states that the measurement result, compared with the corresponding limit, is used to decide compliance. Clause 5.2 also requires the measurement uncertainty to be included in the test report, and it gives uncertainty limits for transmitter and receiver measurements.

For test labs, that means the report must show both the measured value and the uncertainty, using the uncertainty method from TR 100 028. This is important because compliance decisions depend on traceable measurements, not just on nominal readings.

Essential radio test suites

Clause 5.3 identifies the essential radio test suites used to assess performance. The transmitter and receiver test specifications are then listed separately, with each test procedure cross-referenced to EN 301 841-1 or EN 300 113-1.

For conformity assessment, this gives a direct route from requirement to test method. It reduces ambiguity about how to demonstrate that the equipment meets the standard.

What terms does SIST EN 301 841-3 V1.1.1:2011 define?

SIST EN 301 841-3 V1.1.1:2011 defines the technical language used for VDL Mode 2 compliance work. The most important terms are the ones that connect spectrum performance to test results.

• Adjacent channel power - the transmitter power sent outside the assigned channel, including sidebands, spurious components, and noise at the transmitter output.
• Adjacent channel rejection - the receiver's ability to meet the uncorrected BER requirement when a signal is present in an adjacent channel.
• Bit Error Rate (BER) - the ratio of erroneous received bits to total received bits; uncorrected BER is BER without Forward Error Correction (FEC).
• Co-Channel Interference (CCI) - the receiver's ability to demodulate the wanted signal and meet the minimum BER requirement when an unwanted signal is on the same assigned channel.
• Environmental profile - the declared range of environmental conditions within which compliance is required.
• Ground based station - aeronautical station equipment in the Aeronautical Mobile Service (AMS) used with an external antenna at a fixed location.
• Differential Eight Phase Shift Keying (D8PSK) - the modulation method used by VDL Mode 2.
• Aeronautical Telecommunication Network (ATN) - the network context in which VDL Mode 2 can operate as an air/ground sub-network.

Who uses SIST EN 301 841-3 V1.1.1:2011?

SIST EN 301 841-3 V1.1.1:2011 is used by manufacturers of VDL Mode 2 ground-based equipment, test laboratories, conformity assessment bodies, and regulatory or procurement teams working in aeronautical radio communications. It is also relevant to system integrators and installation engineers who need to match equipment capabilities to the declared environmental profile and site conditions.

In practice, these users apply it to design verification, laboratory testing, technical file preparation, installation review, and conformity claims for ground-based VDL Mode 2 stations.

Which standards are used with SIST EN 301 841-3 V1.1.1:2011?

SIST EN 301 841-3 V1.1.1:2011 is used together with a small set of named standards and related documents that supply the detailed technical limits and test methods.

• ETSI EN 301 841-1 (V1.3.1) - provides the core physical layer and MAC sub-layer requirements, and most transmitter and receiver limits and procedures are referenced from it.
• ETSI EN 300 113-1 (V1.6.2) - provides limits and methods used here for cabinet radiation, intermodulation attenuation, blocking or desensitization, and cabinet radiation on the receiver side.
• ETSI TR 100 028 (all parts) - gives the method for calculating measurement uncertainty.
• Directive 1999/5/EC (R&TTE Directive) - provides the article 3.2 legal requirement that the standard addresses.
• Regulation (EC) 552/2004 - is cited in the scope as related interoperability legislation that may also apply.
• ETSI EG 201 399 - describes the modular structure used for harmonized standards under the R&TTE framework.

What does the SIST EN 301 841-3 V1.1.1:2011 document contain?

SIST EN 301 841-3 V1.1.1:2011 contains transmitter and receiver requirement clauses, the associated test procedures, and the measurement uncertainty values used in test reports. It also contains the HS-RTT in Annex A, which cross-references each requirement to its test specification and indicates whether the test is part of the Essential Radio Test Suite.

The technical body includes detailed subsections for frequency error, output power, adjacent channel power, spurious emissions, symbol constellation error, sensitivity, interference rejection, blocking, and cabinet radiation. For a test engineer, the value of the document is that it ties each conformity topic to a named procedure in EN 301 841-1 or EN 300 113-1, so the test plan can be built directly from the standard.

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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within ETSI Secretariat.
Users of the present document should be aware that the document may be subject to revision or change of status.
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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.
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DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.
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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 t
...