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ETSI EN 303 396 V1.1.1
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Short Range Devices; Measurement Techniques for Automotive and Surveillance Radar Equipment
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Final draft
ETSI EN 303 396
V1.1.1 (2016-10)
Short Range Devices;
Measurement Techniques for Automotive
and Surveillance Radar Equipment
EUROPEAN STANDARD
ETSI
Final draft ETSI EN 303 396 V1.1.1 (2016
-
10)
2
Reference
DEN/ERM-TGSRR-77
Keywords
measurement uncertainty, power measurement,
radio measurements
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ETSI
Final draft ETSI EN 303 396 V1.1.1 (2016
-
10)
3
Contents
Intellectual Property Rights ................................................................................................................................ 6
Foreword ............................................................................................................................................................. 6
Modal verbs terminology .................................................................................................................................... 6
Introduction ........................................................................................................................................................ 6
1 Scope ........................................................................................................................................................ 8
2 References ................................................................................................................................................ 8
2.1 Normative references ......................................................................................................................................... 8
2.2 Informative references ........................................................................................................................................ 8
3 Definitions, symbols and abbreviations ................................................................................................... 9
3.1 Definitions .......................................................................................................................................................... 9
3.2 Symbols ............................................................................................................................................................ 11
3.3 Abbreviations ................................................................................................................................................... 12
4 General Considerations for performing the tests .................................................................................... 13
4.1 Overview .......................................................................................................................................................... 13
4.2 Product information .......................................................................................................................................... 13
4.3 Requirements for the EUT................................................................................................................................ 13
4.3.1 EUT version and configuration ................................................................................................................... 13
4.3.2 Presentation................................................................................................................................................. 14
4.3.3 Multiple operating bandwidths ................................................................................................................... 14
4.3.4 Requirement on the modulation during testing ........................................................................................... 14
4.3.5 Requirements in case of EUT with scanning antennas ............................................................................... 14
4.3.5.1 Classification ......................................................................................................................................... 14
4.3.5.2 Measurement of fixed beam EUT ......................................................................................................... 14
4.3.5.3 Measurement of constant pattern EUT .................................................................................................. 14
4.3.5.4 Measurement of variable pattern EUT .................................................................................................. 15
4.4 Test conditions ................................................................................................................................................. 15
4.4.1 Introduction................................................................................................................................................. 15
4.4.2 Power sources ............................................................................................................................................. 15
4.4.3 Normal test conditions ................................................................................................................................ 15
4.4.3.1 Normal temperature and humidity ........................................................................................................ 15
4.4.3.2 Normal power source ............................................................................................................................ 15
4.4.3.2.1 Mains voltage .................................................................................................................................. 15
4.4.3.2.2 Lead-acid battery power sources used on vehicles .......................................................................... 15
4.4.3.2.3 Other power sources ........................................................................................................................ 16
4.4.4 Extreme test conditions ............................................................................................................................... 16
4.4.4.1 Extreme temperatures ............................................................................................................................ 16
4.4.4.1.1 Procedure for tests at extreme temperatures .................................................................................... 16
4.4.4.1.2 Extreme temperature ranges ............................................................................................................ 16
4.4.4.2 Extreme test source voltages ................................................................................................................. 16
4.4.4.2.1 Mains voltage .................................................................................................................................. 16
4.4.4.2.2 Other power sources ........................................................................................................................ 16
4.5 Reference bandwidth of the measuring receiver .............................................................................................. 16
4.6 Interpretation of test results and permitted measurement uncertainty .............................................................. 17
4.6.0 General ........................................................................................................................................................ 17
4.6.1 Maximum permitted measurement uncertainty .......................................................................................... 18
4.6.2 Measurement uncertainty is equal to or less than maximum permitted uncertainty ................................... 18
4.6.3 Measurement uncertainty is larger than maximum permitted uncertainty .................................................. 18
4.7 Test Report ....................................................................................................................................................... 18
5 Test setups and procedures ..................................................................................................................... 19
5.1 Introduction ...................................................................................................................................................... 19
5.2 Initial measurement steps ................................................................................................................................. 19
5.3 Radiated measurements .................................................................................................................................... 19
5.3.1 General ........................................................................................................................................................ 19
ETSI
Final draft ETSI EN 303 396 V1.1.1 (2016
-
10)
4
5.3.2 Guidance on the use of a radiation test site ................................................................................................. 19
5.3.2.0 Introduction ........................................................................................................................................... 19
5.3.2.1 Verification of the test site .................................................................................................................... 20
5.3.2.2 Mounting bracket .................................................................................................................................. 20
5.3.2.3 Range length ......................................................................................................................................... 20
5.3.2.4 Test Site preparation ............................................................................................................................. 21
5.3.3 Standard test methods ................................................................................................................................. 21
5.4 Testing of host connected devices .................................................................................................................... 21
6 Test procedures ...................................................................................................................................... 21
6.1 General ............................................................................................................................................................. 21
6.2 Descriptions ...................................................................................................................................................... 22
6.2.1 Introduction................................................................................................................................................. 22
6.2.2 Operating frequency range .......................................................................................................................... 22
6.2.3 Total Power ................................................................................................................................................. 22
6.2.4 Peak e.i.r.p. ................................................................................................................................................. 23
6.2.5 Mean (average) e.i.r.p. ................................................................................................................................ 23
6.2.6 Mean e.i.r.p. spectral density ...................................................................................................................... 23
6.2.7 Power Duty Cycle ....................................................................................................................................... 23
6.2.8 Spectrum Access Duty Cycle...................................................................................................................... 24
6.2.9 Dwell time and repetition time ................................................................................................................... 24
6.2.10 Frequency modulation range....................................................................................................................... 24
6.2.11 Unwanted emissions in the out-of-band and spurious domains .................................................................. 24
6.2.12 Receiver spurious emissions ....................................................................................................................... 25
6.2.13 Receiver in-band, out-of-band and remote-band signals handling.............................................................. 25
6.3 Method of measurements of the EUT............................................................................................................... 25
6.3.1 Introduction................................................................................................................................................. 25
6.3.2 Operating Frequency Range ....................................................................................................................... 25
6.3.3 Peak e.i.r.p. ................................................................................................................................................. 26
6.3.3.1 General .................................................................................................................................................. 26
6.3.3.2 Method with a spectrum analyser .......................................................................................................... 26
6.3.3.3 Method with an average power meter ................................................................................................... 26
6.3.3.4 Method with a peak power meter .......................................................................................................... 26
6.3.4 Mean e.i.r.p. ................................................................................................................................................ 26
6.3.4.1 General .................................................................................................................................................. 26
6.3.4.2 Method with a spectrum analyser .......................................................................................................... 27
6.3.4.3 Method with an average power meter ................................................................................................... 27
6.3.4.4 Method with a peak power meter .......................................................................................................... 27
6.3.5 Mean E.I.R.P spectral density ..................................................................................................................... 27
6.3.6 Power Duty Cycle ....................................................................................................................................... 28
6.3.6.1 General .................................................................................................................................................. 28
6.3.6.2 Method with the spectrum analyser ...................................................................................................... 28
6.3.6.3 Alternative method with an oscilloscope .............................................................................................. 28
6.3.6.3.1 Description ...................................................................................................................................... 28
6.3.6.3.2 General test setup ............................................................................................................................ 28
6.3.7 Spectrum access duty cycle ........................................................................................................................ 29
6.3.7.1 Introduction ........................................................................................................................................... 29
6.3.7.2 Measurement of spectrum access duty cycle......................................................................................... 30
6.3.8 Dwell time and repetition time ................................................................................................................... 30
6.3.8.1 Introduction ........................................................................................................................................... 30
6.3.8.2 Measurement of accumulated dwell time over a given observation time interval ................................ 31
6.3.8.3 Measurement of a repeating dwell time ................................................................................................ 32
6.3.9 Frequency modulation range....................................................................................................................... 32
6.3.9.1 Introduction ........................................................................................................................................... 32
6.3.9.2 Measurement of frequency modulation range ....................................................................................... 33
6.3.10 Unwanted emissions in the out-of-band and spurious domains .................................................................. 33
6.3.11 Receiver spurious emissions ....................................................................................................................... 35
6.3.11.1 General .................................................................................................................................................. 35
6.3.11.2 Test set-up ............................................................................................................................................. 35
6.3.12 Receiver in-band, out-of-band and remote-band signals handling.............................................................. 36
6.3.12.1 Introduction ........................................................................................................................................... 36
6.3.12.2 Test set-up ............................................................................................................................................. 36
ETSI
Final draft ETSI EN 303 396 V1.1.1 (2016
-
10)
5
6.3.12.3 Test procedure ....................................................................................................................................... 36
6.3.12.4 Unwanted signals specification ............................................................................................................. 36
Annex A (normative): Test sites and general arrangements for measurements involving the
use of radiated fields ...................................................................................... 37
A.1 Introduction ............................................................................................................................................ 37
A.2 Anechoic chamber .................................................................................................................................. 37
A.3 Anechoic chamber with a conductive ground plane ............................................................................... 38
A.4 Extreme conditions test .......................................................................................................................... 39
A.4.1 Radio transparent temperature chamber ........................................................................................................... 39
A.4.2 Use of a test fixture .......................................................................................................................................... 39
A.4.2.0 General ........................................................................................................................................................ 39
A.4.2.1 Characteristics ............................................................................................................................................. 39
A.4.2.2 Validation of the test fixture in the temperature chamber ........................................................................... 40
A.4.2.3 Use of the test fixture for measurement in the temperature chamber ......................................................... 42
A.5 Test antenna ............................................................................................................................................ 42
A.5.1 General ............................................................................................................................................................. 42
A.5.2 Substitution antenna ......................................................................................................................................... 42
A.5.3 Measuring antenna ........................................................................................................................................... 43
Annex B (normative): Standard test methods ................................................................................... 44
B.1 Radiated test set-up calibrated by using the Rx link budget calculation ................................................ 44
B.2 Radiated test set-up calibrated by using substitution method................................................................. 44
Annex C (normative): Rx link budget calculation ............................................................................ 46
Annex D (normative): Measuring receivers ....................................................................................... 49
D.1 General remarks ..................................................................................................................................... 49
D.2 Power Meter ........................................................................................................................................... 49
D.3 Spectrum analyser .................................................................................................................................. 50
D.4 Signal analyser ....................................................................................................................................... 50
D.5 Oscilloscope ........................................................................................................................................... 51
Annex E (informative): Bibliography ................................................................................................... 52
Annex G (informative): Change History .............................................................................................. 53
History .............................................................................................................................................................. 54
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