SIST EN 301 842-1 V1.1.1:2003

Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 1: General description and physical layer

This EN will cover VHF aeronautical radio equipment operating at 25 kHz channel spacing in the aeronautical band 118-136.975MHz. It covers ground-based, fixed data communication,  VHF Data Link (VDL) mode 4.  Reference documents: EUROCAE WG51 vdl MODE 4 MOPS ICAO SARPS on VDL mode 4

Elektromagnetna združljivost (EMC) in zadeve v zvezi z radijskim spektrom (ERM) - Radijska oprema za podatkovno povezavo VHF zrak-tla, 4. način - Tehnične karakteristike in merilne metode za talno opremo - 1. del: Splošni opis in fizična plast

General Information

• Status: Published
• Publication Date: 31-Mar-2003
• ICS: 33.060.99 - Other equipment for radiocommunications
• ICS: 33.100.01 - Electromagnetic compatibility in general
• ICS: 35.100.10 - Physical layer
• Technical Committee: RES - Radio equipment and systems
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2003
• Due Date: 01-Apr-2003
• Completion Date: 01-Apr-2003
• Mandate: M/239
• Ref Project: ETSI EN 301 842-1 V1.1.1 (2002-01) - Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF air-ground Data Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of measurement for ground-based equipment; Part 1: General description and physical layer

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 301 842-1 V1.1.1:2003
01-april-2003
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5DGLMVNDRSUHPD]DSRGDWNRYQRSRYH]DYR9+)]UDNWODQDþLQ7HKQLþQH
NDUDNWHULVWLNHLQPHULOQHPHWRGH]DWDOQRRSUHPRGHO6SORãQLRSLVLQIL]LþQD
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Electromagnetic compatibility and Radio spectrum Matters (ERM); VHF air-ground Data
Link (VDL) Mode 4 radio equipment; Technical characteristics and methods of
measurement for ground-based equipment; Part 1: General description and physical
layer
Ta slovenski standard je istoveten z: EN 301 842-1 Version 1.1.1
ICS:
33.060.99 Druga oprema za radijske Other equipment for
komunikacije radiocommunications
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
35.100.10 )L]LþQLVORM Physical layer
SIST EN 301 842-1 V1.1.1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 301 842-1 V1.1.1:2003

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SIST EN 301 842-1 V1.1.1:2003

ETSI EN 301 842-1 V1.1.1 (2002-01)
European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
VHF air-ground Data Link (VDL)
Mode 4 radio equipment;
Technical characteristics and
methods of measurement
for ground-based equipment;
Part 1: General description and physical layer

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SIST EN 301 842-1 V1.1.1:2003
 2 ETSI EN 301 842-1 V1.1.1 (2002-01)



Reference
DEN/ERM-RP05-016-1
Keywords
aeronautical, digital, radio, testing, VHF
ETSI
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Sous-Préfecture de Grasse (06) N° 7803/88

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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 2002.
All rights reserved.

ETSI

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SIST EN 301 842-1 V1.1.1:2003
 3 ETSI EN 301 842-1 V1.1.1 (2002-01)
Contents
Intellectual Property Rights.6
Foreword.6
Introduction .6
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.10
3.2 Abbreviations.14
4 General description and architecture of VDL Mode 4 .15
4.1 General.15
4.2 Relationship to OSI reference model.17
4.3 Communication services.18
4.4 ADS-B.18
4.5 Operational scenarios.19
4.6 VDL Mode 4 fundamentals.19
4.7 VDL Mode 4 Ground architecture .20
5 VDL mode 4 physical layer functional specifications .20
5.1 Overview.20
5.1.1 Functions.20
5.1.2 Data reception.20
5.1.3 Data transmission.20
5.2 Modulation scheme.20
5.3 Tuning range and channel increments .20
6 VDL Mode 4 equipment requirements.21
6.1 Receiver Requirements.21
6.1.1 Receiver operating range .21
6.1.2 Sensitivity.21
6.1.3 Adjacent channel rejection.21
6.1.4 Rejection of signals within the VHF Aeronautical band.21
6.1.5 Rejection of signals outside the VHF Aeronautical band.21
6.1.6 Desired signal dynamic range.22
6.1.7 Symbol rate capture range .22
6.1.8 Frequency capture range.22
6.1.9 Co-channel interference.22
6.1.10 Conducted spurious emission .22
6.1.11 In-band Intermodulation.23
6.1.12 Cabinet radiation.23
6.2 Transmitter requirements.23
6.2.1 Protection of the transmitter.23
6.2.2 Manufacturer's declared output power.24
6.2.3 RF power rise time.24
6.2.4 RF power release time .24
6.2.5 Channel bit rate.24
6.2.6 Conducted Spurious emissions .24
6.2.7 Adjacent channel power.25
6.2.8 Wide-band noise.25
6.2.9 Frequency Tolerance.25
6.2.10 Cabinet radiation.25
6.2.11 Load VSWR capability.25
ETSI

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SIST EN 301 842-1 V1.1.1:2003
 4 ETSI EN 301 842-1 V1.1.1 (2002-01)
6.3 Transceiver timing requirements.25
6.3.1 Start of transmission .25
6.3.2 Automatic transmitter shutdown.25
6.3.3 Receiver to transmitter turnaround time .25
6.3.4 Transmitter to receiver turnaround time .26
6.3.5 System timing requirements .26
7 General design requirements.26
7.1 Controls and indicators.26
7.2 Class of emission and modulation characteristics .26
7.3 Warm up.26
8 Test conditions, power sources and ambient temperatures .26
8.1 Test power source.26
8.2 Test channels.26
8.3 General conditions of measurement .27
8.3.1 Receiver test signal arrangement .27
8.3.2 Performance check.27
8.4 Normal and extreme test conditions .27
8.4.1 Normal test conditions .27
8.4.1.1 Normal temperature and humidity .27
8.4.1.2 Normal power sources.27
8.4.1.2.1 Mains voltage and frequency.27
8.4.1.2.2 Other power sources .27
8.4.2 Extreme test conditions.27
8.4.2.1 Extreme temperatures.27
8.4.2.2 Procedure for tests at extreme temperatures.28
8.4.2.2.1 General.28
8.4.2.2.2 High temperature.28
8.4.2.2.3 Low temperature.28
8.4.2.3 Extreme values of test power sources .28
8.4.2.3.1 Mains voltage and frequency.28
9 Detailed Test Procedures for the physical layer.28
9.1 Receiver.29
9.1.1 BER test.29
9.1.2 Sensitivity.30
9.1.3 Adjacent Channel Rejection.31
9.1.4 Rejection of signals within the VHF Aeronautical band.31
9.1.5 Rejection of signals outside the VHF Aeronautical band.32
9.1.6 Desired Signal dynamic range .33
9.1.7 Symbol rate capture range .34
9.1.8 Frequency capture range.34
9.1.9 Co-channel interference.35
9.1.10 Conducted spurious emission (clause 6.1.10).35
9.1.11 In-band Intermodulation.36
9.2 Transmitter.37
9.2.1 Channel Bit Rate.37
9.2.2 Manufacturer's declared output power.37
9.2.3 RF power rise time.37
9.2.4 RF power release time .38
9.2.5 Spurious emissions.38
9.2.6 Adjacent channel power.39
9.2.6.1 Method of measurement for the first adjacent channel .39
9.2.6.2 Method of measurement for the second adjacent channel.40
9.2.6.3 Method of measurement for the fourth adjacent channel .41
9.2.6.4 Alternative Measurement Procedure for Adjacent Channel Power (ACP) .41
9.2.7 Wideband noise.42
9.2.8 Frequency Error.43
9.2.8.1 Definition.43
9.2.8.2 Method of measurement.43
9.2.8.3 Limits.43
9.2.9 Load VSWR capability (clause 6.2.11) .43
ETSI

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SIST EN 301 842-1 V1.1.1:2003
 5 ETSI EN 301 842-1 V1.1.1 (2002-01)
9.3 Physical layer, system parameters.44
9.3.1 Receiver to Transmitter turn-around time.44
9.3.2 Transmitter to Receiver turn-around time.45
9.3.3 Tuning Time.45
Annex A (informative): Bibliography.46
History .47

ETSI

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SIST EN 301 842-1 V1.1.1:2003
 6 ETSI EN 301 842-1 V1.1.1 (2002-01)
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 Data Link (VDL) Mode 4 radio
equipment; Technical characteristics and methods of measurement for ground-based equipment, as identified below:
Part 1: "General description and physical layer";
Part 2: "Data link layer".

National transposition dates
Date of adoption of this EN: 4 January 2002
Date of latest announcement of this EN (doa): 30 April 2002
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 October 2002
Date of withdrawal of any conflicting National Standard (dow): 31 October 2002

Introduction
The present document states the technical specifications for Very High Frequency (VHF) Digital Link (VDL) Mode 4
ground-based radio transmitters, transceivers and receivers for air-ground communications operating in the VHF band
(118,000 MHz to 136,975 MHz), using Gaussian-filtered Frequency Shift Keying (GFSK) Modulation with 25 kHz
channel spacing. Optionally the transmitters, transceivers and receivers may tune between 113,000 MHz to
117,975 MHz.
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.
ETSI

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SIST EN 301 842-1 V1.1.1:2003
 7 ETSI EN 301 842-1 V1.1.1 (2002-01)
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 [5].
ETSI

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SIST EN 301 842-1 V1.1.1:2003
 8 ETSI EN 301 842-1 V1.1.1 (2002-01)
1 Scope
The present document states the minimum performance requirements for radio transmitters receivers and transceivers
for ground VHF Datalink mode 4 (VDL mode 4) equipment intended to be used for air-ground data communications,
operating in the VHF band (118,000 MHz to 137,000 MHz and optionally 113,000 MHz to 117,975 MHz) allocated to
the aeronautical mobile service. It is designed to ensure that equipment certified to it will be compatible with the
relevant ICAO VHF Digital Link (VDL) mode 4 Standards and Recommended Practices (SARPs) [1].
Manufacturers should note that in the future, all or part of the frequency band 108,000 MHz to 117,975 MHz may
become available for aeronautical communications.
The present document applies to Gaussian-filtered Frequency Shift Keying (GFSK) systems, with channel separations
of 25 kHz intended for air-ground digital communications. The scope of the present document is limited to ground
stations.
The VDL mode 4 system provides data communication exchanges between aircraft and ground systems supporting
surveillance applications. The supported modes of communication for VDL mode 4 include:
• broadcast and point-to-point communication,
• air-air and ground-air,
• operation without ground infrastructure.
VDL Mode 4 is designed to be an Air/Ground subsystem of the Aeronautical Telecommunication Network (ATN)
using the AM(R)S band and it is organized according to the Open Systems Interconnection (OSI) model (defined by
ISO). It provides reliable subnetwork services to the ATN system.
The present document specifies functional specifications of radio transmitters, receivers and transceivers at
ground-based VHF communication equipment intended to be used for air-ground data communications. The present
document is derived from the specifications:
• Mode 4 standards produced under the auspices of the International Civil Aviation Organization (ICAO) [1].
• Other relevant standards as defined in clause 2.
The present document includes:
• Clause 2 provides references to relevant documents.
• Clause 3 provides general definitions, abbreviations and symbols used.
• Clause 4 provides a general description and architecture of VDL Mode 4 including reference to the OSI model,
communication services, ADS-B and operational scenarios.
• Clause 5 provides functional specifications applicable to the physical layer including transmitter/receiver
requirements and the modulation scheme.
• Clause 6 provides general equipment requirements.
• 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.
The full physical layer tests are provided which correspond closely to the standard set of tests used for other VDL
systems.
ETSI

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SIST EN 301 842-1 V1.1.1:2003
 9 ETSI EN 301 842-1 V1.1.1 (2002-01)
Mandating and Recommendation Phrases
a) "Shall"
The use of the word "Shall" indicates a mandated criterion; i.e. compliance with the particular procedure or
specification is mandatory and no alternative may be applied.
b) "Should"
The use of the word "Should" (and phrases such as "It is recommended that.", etc.) indicate that though the
procedure or criterion is regarded as the preferred option, alternative procedures, specifications or criteria
may be applied, provided that the manufacturer, installer or tester can provide information or data to
adequately support and justify the alternative.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
[1] Annex 10 to the Convention on International Civil Aviation Aeronautical Telecommunications,
International Civil Aviation Organization.
[2] ISO/IEC 7498-1 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model: The Basic Model".
[3] ISO/IEC 10731 (1994): "Information technology - Open Systems Interconnection - Basic
Reference Model - Conventions for the definition of OSI services".
[4] ETSI EN 300 113-1: "ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Land
mobile service; Radio equipment intended for the transmission of data (and speech) and having an
antenna connector; Part 1: Technical characteristics and methods of measurement".
[5] ETSI EN 301 489-22: "Electromagnetic compatib
...