Page 3
ETS 300 441: February 1996
Contents
Foreword .......................................................................................................................................................7
1
Scope ..................................................................................................................................................9
2
Normative references..........................................................................................................................9
3
Abbreviations and symbols .................................................................................................................9
3.1
Abbreviations .......................................................................................................................9
3.2
Symbols ...............................................................................................................................9
4
General requirements .......................................................................................................................10
4.1
Construction.......................................................................................................................10
4.1.1
Equipment elements......................................................................................10
4.1.2
Design ...........................................................................................................10
4.1.3
Inspection and maintenance .........................................................................10
4.1.4
Illumination ....................................................................................................10
4.1.5
Interfaces.......................................................................................................10
4.2
Controls and indicators ......................................................................................................10
4.2.1
General..........................................................................................................10
4.2.2
Controls .........................................................................................................10
4.2.3
Indicators.......................................................................................................11
4.2.4
Misuse ...........................................................................................................11
4.3
Labels ................................................................................................................................11
4.3.1
Power supply .................................................................................................11
4.3.2
Identification ..................................................................................................11
4.3.3
Compass safe distance.................................................................................11
4.4
Safety precautions .............................................................................................................11
4.4.1
Protection ......................................................................................................11
4.4.2
Earthing .........................................................................................................11
4.4.3
Antenna static protection...............................................................................11
4.4.4
Access...........................................................................................................11
4.5
Tuning ................................................................................................................................11
4.6
Classes of emission...........................................................................................................12
4.7
Warming up period ............................................................................................................12
4.8
Instructions.........................................................................................................................12
4.8.1
Repair instructions.........................................................................................12
4.8.2
Accessibility ...................................................................................................12
5
Test conditions, power supplies and ambient temperatures .............................................................12
5.1
General ..............................................................................................................................12
5.2
Test power source .............................................................................................................12
5.3
Normal test conditions .......................................................................................................12
5.3.1
Normal temperature and humidity .................................................................12
5.3.2
Normal test power source .............................................................................13
5.3.2.1
Mains voltage and frequency...............................................13
5.3.2.2
Secondary battery power sources .......................................13
5.3.2.3
Other power sources ...........................................................13
5.4
Extreme test conditions .....................................................................................................13
5.4.1
Extreme temperatures...................................................................................13
5.4.2
Extreme values of the test power source ......................................................13
5.4.2.1
Mains voltage and frequency...............................................13
5.4.2.2
Secondary battery power sources .......................................13
5.4.2.3
Other power sources ...........................................................13
5.5
Procedures for tests at extreme temperatures ..................................................................13
5.6
Artificial antenna ................................................................................................................14
5.7
Test signals applied to the receiver input...........................................................................14
5.8
Measurement uncertainty and interpretation of the measuring results..............................14
Содержание ETS 300 441
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