SIST EN 301 842-1 V1.3.1:2007

SLOVENSKI STANDARD
SIST EN 301 842-1 V1.3.1:2007
01-februar-2007
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Electromagnetic compatibility and Radio spectrum Matters (ERM); 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
Ta slovenski standard je istoveten z: EN 301 842-1 Version 1.3.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN 301 842-1 V1.3.1:2007 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 301 842-1 V1.3.1:2007

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SIST EN 301 842-1 V1.3.1:2007

ETSI EN 301 842-1 V1.3.1 (2006-11)
European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
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

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SIST EN 301 842-1 V1.3.1:2007
 2 ETSI EN 301 842-1 V1.3.1 (2006-11)



Reference
REN/ERM-TG25-029-1
Keywords
aeronautical, digital, radio, testing, VHF
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© European Telecommunications Standards Institute 2006.
All rights reserved.

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SIST EN 301 842-1 V1.3.1:2007
 3 ETSI EN 301 842-1 V1.3.1 (2006-11)
Contents
Intellectual Property Rights.6
Foreword.6
Introduction .7
1 Scope.8
2 References.9
3 Definitions and abbreviations.10
3.1 Definitions.10
3.1.1 Basic reference model definitions.10
3.1.2 Service conventions definitions .10
3.1.3 General definitions.11
3.2 Abbreviations.15
4 General description and architecture of VDL Mode 4 .16
4.1 General.16
5 VDL Mode 4 physical layer functional specifications.16
5.1 Overview.16
5.1.1 Functions.16
5.1.2 Data reception.16
5.1.3 Data transmission.16
5.2 Modulation scheme.16
6 VDL Mode 4 equipment requirements.16
6.1 Receiver Requirements.17
6.1.1 Receiver operating range .17
6.1.2 BER requirement.17
6.1.3 Reference signal level.17
6.1.4 Sensitivity.17
6.1.5 Adjacent channel rejection.17
6.1.6 Rejection of signals within the VHF Aeronautical band.17
6.1.7 Rejection of signals outside the VHF Aeronautical band .18
6.1.8 Desired signal dynamic range.18
6.1.9 Symbol rate capture range .18
6.1.10 Frequency capture range.18
6.1.11 Co-channel interference.19
6.1.12 Conducted spurious emission .19
6.1.13 FM Broadcast Intermodulation.19
6.1.13.1 Radio frequencies in the band 117,975 MHz to 137 MHz.19
6.1.14 In-band Intermodulation.19
6.1.15 Cabinet radiation.19
6.2 Transmitter requirements.20
6.2.1 Transmitter operating range.20
6.2.2 Channel Bit Rate.20
6.2.3 Protection of the transmitter.20
6.2.4 Manufacturer's declared output power.20
6.2.5 RF power rise time.20
6.2.6 RF power release time .20
6.2.7 Conducted Spurious emissions .21
6.2.8 Adjacent channel power.21
6.2.9 Wide-band noise.21
6.2.10 Frequency Tolerance.21
6.2.11 Load VSWR capability.21
6.2.12 Cabinet radiation.21
6.3 Transceiver requirements.22
6.3.1 Start of transmission .22
ETSI

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SIST EN 301 842-1 V1.3.1:2007
 4 ETSI EN 301 842-1 V1.3.1 (2006-11)
6.3.2 Automatic transmitter shutdown.22
6.3.3 Receiver to transmitter turnaround time .22
6.3.4 Transmitter to receiver turnaround time .22
6.3.5 System timing requirements .22
7 General design requirements.22
7.1 Controls and indicators.22
7.2 Class of emission and modulation characteristics .22
7.3 Warm up.22
8 Test conditions, power sources and ambient temperatures .23
8.1 Test power source.23
8.2 Test channels.23
8.3 General conditions of measurement .23
8.3.1 Receiver test signal arrangement .23
8.3.2 Performance check.23
8.4 Normal and extreme test conditions .23
8.4.1 Normal test conditions .24
8.4.1.1 Normal temperature and humidity .24
8.4.1.2 Normal power sources.24
8.4.1.2.1 Mains voltage and frequency.24
8.4.1.2.2 Other power sources .24
8.4.2 Extreme test conditions.24
8.4.2.1 Extreme temperatures.24
8.4.2.2 Procedure for tests at extreme temperatures.24
8.4.2.2.1 General.24
8.4.2.2.2 High temperature.24
8.4.2.2.3 Low temperature.25
8.4.2.3 Extreme values of test power sources .25
8.4.2.3.1 Mains voltage and frequency.25
9 Detailed Test Procedures for the physical layer.25
9.1 Receiver.25
9.1.1 BER test.25
9.1.2 Sensitivity.27
9.1.3 Adjacent Channel Rejection (ACR).28
9.1.4 Rejection of signals within the VHF Aeronautical band.29
9.1.5 Rejection of signals outside the VHF Aeronautical band .30
9.1.6 Desired Signal dynamic range .30
9.1.7 Symbol rate capture range .31
9.1.8 Frequency capture range.31
9.1.9 Co-channel interference.32
9.1.10 Conducted spurious emission .32
9.1.11 In-band Intermodulation.33
9.2 Transmitter.34
9.2.1 Channel Bit Rate.34
9.2.2 Manufacturer's declared output power.34
9.2.3 RF power rise time.35
9.2.4 RF power release time .35
9.2.5 Spurious emissions.36
9.2.6 Adjacent channel power.36
9.2.6.1 Method of measurement for the first adjacent channel .36
9.2.6.2 Method of measurement for the second adjacent channel.37
9.2.6.3 Method of measurement for the fourth adjacent channel .38
9.2.6.4 Alternative measurement procedure for Adjacent Channel Power (ACP).38
9.2.7 Wide-band noise.39
9.2.8 Frequency Error.40
9.2.8.1 Definition.40
9.2.8.2 Method of measurement.40
9.2.8.3 Limits.40
9.2.9 Load VSWR capability.40
9.3 Physical layer, system parameters.41
9.3.1 Receiver to Transmitter turn-around time.41
ETSI

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SIST EN 301 842-1 V1.3.1:2007
 5 ETSI EN 301 842-1 V1.3.1 (2006-11)
9.3.2 Transmitter to Receiver turn-around time.42
9.3.3 Tuning Time.42
Annex A (informative): Cross reference matrix .43
Annex B (informative): Bibliography.45
History .47

ETSI

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SIST EN 301 842-1 V1.3.1:2007
 6 ETSI EN 301 842-1 V1.3.1 (2006-11)
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://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 European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM).
The present document is part 1 of a multi-part deliverable covering the VHF air-ground Digital Link (VDL) Mode 4
radio equipment; Technical characteristics and methods of measurement for ground-based equipment, as identified
below:
Part 1: "EN for ground equipment";
Part 2: "General description and data link layer";
Part 3: "Additional broadcast aspects";
Part 4: "Point-to-point functions";
Part 5: "VDL 4 ground-based equipment compliance with the SES 552/2004 interoperability Regulation";
Part 6: "Harmonized EN covering essential requirements of article 3.2 of the R&TTE Directive".
The present document is accompanied by an equivalent airborne standard, EN 302 842 [8] parts 1 to 5, covering the
VHF air-ground Digital Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement
for airborne equipment.

National transposition dates
Date of adoption of this EN: 24 November 2006
Date of latest announcement of this EN (doa): 28 February 2007
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 August 2007
Date of withdrawal of any conflicting National Standard (dow): 31 August 2007

ETSI

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SIST EN 301 842-1 V1.3.1:2007
 7 ETSI EN 301 842-1 V1.3.1 (2006-11)
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 [9]. The modular
structure is shown in EG 201 399 [11].
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
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 [6].
The present document also indicates VDL Mode 4 compliance with the SES 552/2004 interoperability Regulation [10].
ETSI

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SIST EN 301 842-1 V1.3.1:2007
 8 ETSI EN 301 842-1 V1.3.1 (2006-11)
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 provides part 1 of the technical specification.
The present document is designed to ensure that equipment certified to it 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] and with the SES 552/2004 interoperability Regulation [10].
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 [8].
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 deals with tests of the physical layer necessary to support all types of equipment.
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 [7];
• clause 5 provides functional specifications applicable to the physical layer including transmitter/receiver
requirements and the modulation scheme;
• clause 6 provides general equipment requirements;
ETSI

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SIST EN 301 842-1 V1.3.1:2007
 9 ETSI EN 301 842-1 V1.3.1 (2006-11)
• clause 7 provides general design requirements;
• clause 8 covers general test conditions, environmental tests and calibration;
• clause 9 provides detailed test procedures for the physical layer;
• annex A provides a detailed cross-reference to the relevant requirements contained in reference [1];
• annex B provides a Bibliography;
• a document history.
The full physical layer tests are provided which correspond closely to the standard set of tests used for other VDL
systems.
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 r
...