Draft ETSI EN 300 676 V1.2.1 (1999-12) European Standard (Telecommunications series) Electromagnetic 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; Technical characteristics and methods of measurement 2 Draft ETSI EN 300 676 V1.2.1 (1999-12) Reference REN/ERM-RP05-014 Keywords Aeronautical, AM, DSB, radio, testing, VHF ETSI Postal address F-06921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Tel.:+33492944200 Fax:+33493654716 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 Internet [email protected] Individual copies of this ETSI deliverable can be downloaded from http://www.etsi.org If you find errors in the present document, send your comment to: [email protected] Important notice This ETSI deliverable may be made available in more than one electronic version or in print. 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ETSI 3 Draft ETSI EN 300 676 V1.2.1 (1999-12) 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 5.5 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