SIST EN 300 676-1 V1.4.1:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SUHMHPQLNLRGGDMQLNLElectromagnetic compatibility and Radio spectrum Matters (ERM) - Ground-based VHF hand-held, mobile and fixed radio transmitters, receivers and transceivers for the VHF aeronautical mobile service using amplitude modulation - Part 1: Technical characteristics and methods of measurement49.090On-board equipment and instruments33.100.01Elektromagnetna združljivost na splošnoElectromagnetic compatibility in general33.060.20Sprejemna in oddajna opremaReceiving and transmitting equipmentICS:Ta slovenski standard je istoveten z:EN 300 676-1 Version 1.4.1SIST EN 300 676-1 V1.4.1:2007en01-december-2007SIST EN 300 676-1 V1.4.1:2007SLOVENSKI
STANDARD
ETSI ETSI EN 300 676-1 V1.4.1 (2007-04) 2
Reference REN/ERM-TG25-027-1 Keywords aeronautical, AM, DSB, radio, testing, VHF ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE
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© European Telecommunications Standards Institute 2007. All rights reserved.
DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of its Members. TIPHONTM and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. SIST EN 300 676-1 V1.4.1:2007

ETSI ETSI EN 300 676-1 V1.4.1 (2007-04) 3
Contents Intellectual Property Rights.7 Foreword.7 Introduction.7 1 Scope.8 2 References.8 3 Definitions and abbreviations.8 3.1 Definitions.8 3.2 Abbreviations.9 4 General requirements.9 4.1 Controls and indicators.9 4.2 Class of emission and modulation characteristics.10 4.3 Warm up.10 5 Test conditions, power sources and ambient temperatures.10 5.1 Normal and extreme test conditions.10 5.2 Test power source.10 5.3 Normal test conditions.10 5.3.1 Normal temperature and humidity.10 5.3.2 Normal power sources.11 5.3.2.1 Mains voltage and frequency.11 5.3.2.2 Regulated lead-acid battery power sources used on vehicles.11 5.3.2.3 Other power sources.11 5.4 Extreme test conditions.11 5.4.1 Extreme temperatures.11 5.4.2 Extreme values of test power sources.11 5.4.2.1 Mains voltage.11 5.4.2.2 Other power sources.11 5.4.3 Extended temperatures.11 5.5 Performance test.12 5.6 Environmental tests.12 5.6.1 General.12 5.6.2 Procedure for tests at extreme temperatures.12 5.6.3 Temperature tests.13 5.6.3.1 High temperature.13 5.6.3.2 Low temperature.13 6 General conditions of measurement.13 6.1 Receiver test signal arrangement.13 6.1.1 Test signal sources.13 6.1.2 Nominal frequency.13 6.1.3 Normal test signal.13 6.1.4 Squelch.13 6.1.5 Normal audio output power.14 6.1.6 Audio AGC.14 6.2 Transmitter test signal arrangement.14 6.2.1 Coaxial termination.14 6.2.2 Signal sources.14 6.2.3 Normal test signal.14 6.3 Test channels.14 7 Transmitter.14 7.1 Protection of the transmitter.14 7.1.1 Definition.14 7.1.2 Method of measurement.14 SIST EN 300 676-1 V1.4.1:2007

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7.1.3 Requirement.15 7.2 Frequency error.15 7.2.1 Definition.15 7.2.2 Method of measurement.15 7.2.3 Limits.15 7.3 Carrier power.15 7.3.1 Definitions.15 7.3.2 Method of measurement.16 7.3.3 Tolerances.16 7.3.3.1 Normal test conditions.16 7.3.3.2 Extreme test conditions.16 7.4 Amplitude modulation characteristic.16 7.4.1 Modulation depth (speech).16 7.4.1.1 Definitions.16 7.4.1.2 Method of measurement.16 7.4.1.3 Limits.16 7.4.1.4 Modulation depth (analogue data mode).16 7.4.1.5 Method of measurement.16 7.4.1.6 Limits.17 7.4.2 Modulation compression (speech mode).17 7.4.2.1 Definition.17 7.4.2.2 Method of measurement.17 7.4.2.3 Limits.17 7.4.3 Amplitude modulation distortion.17 7.4.3.1 Definition.17 7.4.3.2 Method of measurement.17 7.4.3.3 Limits.18 7.4.4 Audio frequency response.18 7.4.4.1 Definition.18 7.4.4.2 Method of measurement.18 7.4.4.3 Limits 8,33 kHz channel spacing.18 7.4.4.4 Limits 25 kHz channel spacing.18 7.4.4.5 Limits 25kHz channel spacing (Data).18 7.4.5 Group delay variation (data mode only).19 7.4.5.1 Definition.19 7.4.5.2 Transmitter method of measurement.19 7.4.5.3 Limits.19 7.5 Adjacent channel power.20 7.5.1 Definition.20 7.5.2 Measurement.20 7.5.3 Limits.20 7.6 Broadband noise measurement.21 7.6.1 Definition.21 7.6.2 Method of measurement.21 7.6.3 Limit.21 7.7 Conducted spurious emissions.22 7.7.1 Definition.22 7.7.2 Method of measurement.22 7.7.3 Limits.22 7.8 Intermodulation attenuation.23 7.8.1 Definition.23 7.8.2 Method of measurement.23 7.8.3 Limits.23 7.9 RF power attack time and release time.24 7.9.1 Definitions.24 7.9.2 Method of measurement.24 7.9.2.1 Attack time.24 7.9.2.2 Release time.25 7.9.3 Limits.25 7.10 Keying Transient frequency behaviour of the transmitter.25 7.10.1 Definitions.25 7.10.2 Method of measurement.26 SIST EN 300 676-1 V1.4.1:2007

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7.10.3 Limits.26 7.11 Sidetone.26 7.11.1 Limits.26 8 Receiver.27 8.1 Sensitivity.27 8.1.1 Definition.27 8.1.2 Method of measurement.27 8.1.3 Limits.27 8.2 Harmonic distortion.27 8.2.1 Definition.27 8.2.2 Method of measurement.27 8.2.3 Limits.28 8.3 Audio frequency response.28 8.3.1 Definition.28 8.3.2 Method of measurement.28 8.3.3 Limits.28 8.3.4 Limit for DATA operation.28 8.4 Audio noise.28 8.4.1 Definition.28 8.4.2 Method of measurement.28 8.4.3 Limits.29 8.5 Effective acceptance bandwidth.29 8.5.1 Definition.29 8.5.2 Method of measurement.29 8.5.3 Limits.29 8.6 Adjacent channel rejection.29 8.6.1 Definition.29 8.6.2 Method of measurement.29 8.6.3 Limits.30 8.7 Spurious response rejection.30 8.7.1 Definition.30 8.7.2 Introduction to the method of measurement.30 8.7.3 Method of search of the limited frequency range.31 8.7.4 Method of measurement.31 8.7.5 Limit.31 8.8 Intermodulation response rejection.31 8.8.1 Definition.31 8.8.2 Method of measurement.32 8.8.3 Limit.32 8.9 Blocking or desensitization.32 8.9.1 Definition.32 8.9.2 Method of measurement.32 8.9.3 Limit.33 8.10 Conducted spurious emissions.33 8.10.1 Definition.33 8.10.2 Method of measuring the power level.33 8.10.3 Limits.33 8.11 Squelch operation.34 8.11.1 Definition.34 8.11.2 Method of measurement.34 8.11.3 Limits.34 8.12 Cross modulation rejection.35 8.12.1 Definition.35 8.12.2 Method of measurement.35 8.12.3 Limits.35 8.13 Receiver dynamic range.35 8.13.1 Definition.35 8.13.2 Method of measurement.35 8.13.3 Limit.36 8.14 AGC attack time and release time (data mode only).36 8.14.1 Definitions.36 SIST EN 300 676-1 V1.4.1:2007

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8.14.2 Method of measurement.36 8.14.2.1 Attack time.36 8.14.2.2 AGC Decay time.36 8.14.3 Limits.36 8.15 AF AGC.37 8.15.1 Definition.37 8.15.2 Method of measurement.37 8.15.3 Limit.37 8.16 Group delay variation (data mode only).37 8.16.1 Definition.37 8.16.2 Receiver method of measurement.37 8.16.3 Limits.37 9 Measurement uncertainty and interpretation of the measured results.38 9.1 Maximum measurement uncertainties.38 9.2 Interpretation of the measurement results.39 Annex A (normative): Auxiliary cables.40 Annex B (normative): Specification for adjacent channel power measurement arrangements.41 B.1 Power measuring receiver specification.41 B.1.1 IF filter.41 B.1.2 Attenuation indicator.42 B.1.3 RMS value indicator.42 B.1.4 Oscillator and amplifier.42 Annex C (informative): Bibliography.43 History.44
ETSI ETSI EN 300 676-1 V1.4.1 (2007-04) 7
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 Ground-based VHF hand-held, mobile and fixed radio transmitters, receivers and transceivers for the VHF aeronautical mobile service using amplitude modulation; as identified below: Part 1: "Technical characteristics and methods of measurement"; Part 2: "Harmonized EN covering essential requirements of article 3.2 of the R&TTE Directive".
National transposition dates Date of adoption of this EN: 26 January 2007 Date of latest announcement of this EN (doa): 30 April 2007 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 October 2007 Date of withdrawal of any conflicting National Standard (dow): 31 October 2007
Introduction The present document states the minimum performance requirements for ground based radio transmitters, transceivers and receivers for the aeronautical mobile service operating in the VHF band (118 MHz to 136,975 MHz), using Double Sideband Amplitude Modulation with 8,33 kHz or 25 kHz channel spacing. The present document may be used by accredited test laboratories for the assessment of the performance of the equipment. The performance of the equipment submitted for type testing should be representative for 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 will be tested in accordance with the methods of measurement specified in the present document. SIST EN 300 676-1 V1.4.1:2007

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1 Scope The present document states the minimum performance requirements for radio transmitters receivers and transceivers at ground-based aeronautical stations operating in the VHF band (118 MHz to 136,975 MHz) allocated to the aeronautical mobile service. The present document applies to DSB AM systems, with channel separations of 8,33 kHz or 25 kHz intended for analogue speech and ground base stations with a channel spacing of 25 kHz intended for ACARS data communication. The scope of the present document is limited to ground base stations, ground mobile and hand held radios for ground use. 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. 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. [1] ETSI ETR 028: "Radio Equipment and Systems (RES); Uncertainties in the measurement of mobile radio equipment characteristics". [2] ICAO annex 10 volume V (1996): "Aeronautical Radio Frequency Spectrum Utilization". [3] ITU-T Recommendation P.53: "Psophometer for use on telephone-type circuits". [4] ISO 7637 (parts 1 and 2): "Road vehicles - Electrical disturbances from conduction and coupling". [5] 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 (R&TTE Directive). 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: aeronautical mobile service: mobile service between aeronautical stations and aircraft stations, or between aircraft stations, in which survival craft stations may participate conducted measurements: measurements which are made using a direct RF connection to the equipment under test ground base station: aeronautical station equipment, in the aeronautical mobile service, for use with an external antenna and intended for use at a fixed location hand held: radio equipment with integral batteries, designed to be hand portable and operated hand held SIST EN 300 676-1 V1.4.1:2007

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integral antenna equipment: radio communications equipment with an antenna integrated into the equipment without the use of an external connector and considered to be part of the equipment NOTE: An integral antenna may be internal or external to the equipment. In equipment of this type, a 50 Ω RF connection point shall be provided for test purposes. A connection point for an AF modulating input and for AF output measurements shall also be provided. mobile station: radio equipment designed for permanent or temporary vehicle installation and operation, including provision for vehicle DC power supply, and connections for external antenna, PTT key, microphone, speaker and/or headphone non-integral antenna equipment: radio communications equipment with a connector intended for connection to an antenna portable station: radio equipment with integral battery for independent hand-carried use NOTE: Provisions may be made for connections of an external antenna, PTT key, microphone, headphone and charger, but principally to be operated as a self contained unit. radiated measurements: measurements which involve the measurement of a radiated field 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ACARS Aircraft Communications Addressing and Reporting System AF Audio Frequency AGC Automatic Gain Control AM Amplitude Modulation dBc dB relative to the carrier power DSB Double Side Band ICAO International Civil Aviation Organization IF Intermediate Frequency ppm parts per million RF Radio Frequency rms root mean square SINAD (Signal + Noise + Distortion)/(Noise + Distortion) VSWR Voltage Standing Wave Ratio 4 General requirements 8,33 kHz equipment shall be able to operate on all channels in the List of Assignable Frequencies defined in Appendix 2, chapter 4, Group F (see clause 4.1.8.1.2) of the ICAO Annex 10 Volume V [2]. The channel labelling used for 8,33 kHz channel spacing is based on a frequency-channel pairing in accordance with table 4.1 (bis) of ICAO Annex 10 Volume V [2] clause 4.1.2.4. 25 kHz equipment shall be able to operate on the frequencies 118,0 MHz to 136,975 MHz in accordance with ICAO Annex 10 Volume V [2], Appendix to Chapter 4. It shall not be possible to transmit while any frequency synthesizer used within the transmitter is out of lock. It shall not be possible to transmit during channel switching operations. 4.1 Controls and indicators The equipment shall have the following controls and indicators as a minimum: • a visual indication that the device is switched on; • a facility to disable the squelch for test purposes; SIST EN 300 676-1 V1.4.1:2007

ETSI ETSI EN 300 676-1 V1.4.1 (2007-04) 10 • a visual indication that the carrier is being produced. The equipment shall also meet the following requirements: • the user shall not have access to any control which, if wrongly set, might impair the technical characteristics of the equipment. 4.2 Class of emission and modulation characteristics The equipment shall use Double Side Band (DSB) Amplitude Modulation (AM) full carrier, (6K80A3EJN for 25 kHz, 5K00A3EJN for 8,33 kHz), for speech and 13k0A2D for data. The equipment shall be designed to operate satisfactorily with a channel separation of 8,33 kHz or 25 kHz. 4.3 Warm up After being switched on the equipment shall meet the requirements of the present document within one minute under normal test conditions (see clause 5.3). If the equipment includes parts which require to be heated in order to operate correctly (e.g. crystal ovens) a warming-up period of 10 minutes of those parts shall be allowed. 5 Test conditions, power sources and ambient temperatures 5.1 Normal and extreme test conditions Measurements shall be made under normal test conditions (see clause 5.3) and also, where stated, under extreme test conditions (see clauses 5.4.1 and 5.4.2). 5.2 Test power source During testing, the equipment shall be supplied from a test power source capable of producing normal and extreme test voltages. The internal impedance of the test power source shall be low enough for its effect on the test results to be negligible. For the purpose of testing the power source voltage shall be measured at the input terminals of the equipment. During testing, the power source voltages shall be maintained within a tolerance of ±3 % relative to the voltage level at the beginning of each test. 5.3 Normal test conditions 5.3.1 Normal temperature and humidity The normal temperatu
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