1、ETSI EN 300 761 -1 VI .Z.I (2001-06) European Standard (Telecommunications series) Electromagnetic com pati bi I ity and Radio spectrum Matters (ERM); Short Range Devices (SRD); Automatic Vehicle Identification (AVI) for railways operating in the 2,45 GHz frequency range; Part 1 : Technical characte
2、ristics and methods of measurement 2 ETSI EN 300 761-1 V1.2.1 (2001-06) Reference REN/ERM-RP08-0411-1 Keywords UIC, radio ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 O0017 - NAF 742 C Association but non lucr
3、atif enregistre la Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: htt!x/w.ettlsi. orq The present document may be made available in more than one electronic version or in print. In any case of existing or perceived differen
4、ce in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that
5、the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at If you find errors in the present document, send your comment to: editoretsi.fr Copyright Notification No part may be reproduced except as authorized by wri
6、tten permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3 ETSI EN 300 761-1 V1.2.1 (2001-06) Contents Intellectual Property Rights 7 Introduction 8 Foreword 7 1 2 3 3.1 3.2 3.3
7、 4 4.1 4.1.1 4.1.2 4.2 4.2.1 4.2.2 4.2.3 4.2.3.1 4.2.3.2 4.3 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 4.3.5.1 4.3.5.2 4.4 5 5.1 5.2 5.2.1 5.2.2 5.3 5.3.1 5.3.2 Scope 9 iefer enc es 9 Iefinitions. symbols and abbreviations . 10 Definitions 10 Abbreviations 10 Symbols 10 3eneral requirements 11 General performan
8、ce criteria 11 Testing of equipment with alternative power levels . 12 equipment) . 12 Equipment with an internal permanent or temporary antenna connector . 12 Equipment with a temporary antenna connector . 12 General requirements . 11 Equipment classification 11 Presentation of equipment for testin
9、g purposes . 11 Choice of model for testing 12 Testing of equipment that does not have an external 50 Ohm RF connector (integral antenna Mechanical and electrical design 13 General 13 Controls . 13 Receiver mute or squelch . 13 Transmitter shut-off facility 13 Marking (equipment identification) 13 E
10、quipment identification . 13 Regulatory marking 13 Interpretation of the measurement results . 13 Test conditions. power sources and ambient temperatures . 14 Normal and extreme test conditions . 14 Test power source 14 External test power source 14 Internal test power source . 14 Normal test condit
11、ions . 14 Normal temperature and humidity 14 Normal test power source . 15 5.3.2.1 5.3.2.2 5.3.2.3 5.4 5.4.1 5.4.1.1 5.4.1.1.1 5.4.1.1.2 5.4.1.2 5.4.2 5.4.2.1 5.4.2.2 5.4.2.3 5.4.2.4 Mains voltage . 15 Regulated lead-acid battery power sources 15 Other power sources . 15 Extreme test conditions 15 E
12、xtreme temperatures . 15 Procedure for tests at extreme temperatures . 15 Procedure for equipment designed for continuous transmit operation 15 Procedure for equipment designed for intermittent transmit operation . 16 Extreme temperature ranges 16 Extreme test source voltages 16 Mains voltage . 16 R
13、egulated lead-acid battery power sources 16 Power sources using other types of batteries 17 Other power sources . 17 6 General conditions 17 ETSI 4 ETSI EN 300 761-1 V1.2.1 (2001-06) 6.1 6.1.1 6.1.1.1 6.1.1.2 6.2 6.3 6.4 6.4.1 6.4.2 6.4.3 6.4.3.1 6.4.3.2 6.4.4 6.5 6.6 6.6.1 6.6.2 6.7 7 7.1 7.1.1 7.1
14、.2 7.1.3 7.2 7.2.1 7.2.2 7.2.3 7.3 7.3.1 7.3.2 7.3.3 7.4 7.4.1 7.4.2 7.4.3 7.5 7.5.1 7.5.2 7.5.3 7.6 7.6.1 7.6.2 7.6.3 7.6.4 7.6.5 7.6.6 7.7 7.7.1 7.7.2 7.7.3 8 8.1 8.1.1 8.1.2 Test signals and test modulation 17 Normal test signals (wanted and unwanted signals) . 18 Signals for bit stream measureme
15、nts . 18 Signal for messages 18 Modes of operation of the transmitter . 18 Encoder for receiver measurements 18 Analogue access . 19 Facilities for access . 19 Access points for data stream measurement 19 Coupling arrangements 19 Arrangements for measurements with continuous bit streams 19 Arrangeme
16、nt for measurements with messages 20 Message received indicator 20 Artificial antenna . 20 Test fixture 20 Calibration . 21 Mode of use . 21 Test sites and general arrangements for radiated measurements 21 Methods of measurement and limits for interrogator transmitter parameters 22 Method of measure
17、ment . 22 Frequency error . 23 Method of measurement . 23 Equivalent isotropically radiated power (e.i.r.p) . 22 Definition 22 Limit . 23 Definition 23 Limit . 23 Transmitter spectrum mask 23 Definition 23 Limit . 24 Definition 25 Limit . 25 Eye pattern 25 Definition 25 Limit . 26 Radiated spurious
18、emissions 26 Definition 26 Measuring receiver . 27 Method of measurement cabinet spurious radiation . 28 Method of measurement radiated spurious emission 29 Limits 29 Duty cycle . 29 Declaration 29 Duty cycle classes 30 Method of measurement . 24 Modulation index 25 Method of measurement . 25 Method
19、 of measurement . 25 Method of measurement conducted spurious emission 27 Definitions . 29 Methods of measurement and limits for interrogator receiver parameters . 30 Maximum usable sensitivity 30 Definition 30 Method of measurements under normal and extreme test conditions 30 8.1.2.1 Test arrangeme
20、nt for equipment with integral antenna . 31 8.1.2.2 Test arrangement for equipment with antenna connector 32 8.1.2.3 Test procedure for continuous bit streams 33 8.1.2.4 Test procedure for messages . 33 8.1.3 Limits 33 8.2 Error behaviour at high wanted input signals 33 ETSI 5 ETSI EN 300 761-1 V1.2
21、.1 (2001-06) 8.2.1 8.2.2 8.2.3 8.3 8.3.1 8.3.2 8.3.3 8.3.3.1 8.3.3.2 8.3.3.3 8.3.4 8.3.4.1 8.3.4.2 8.3.4.3 8.3.5 8.3.5.1 8.3.5.2 8.3.5.3 8.3.6 8.3.6.1 8.3.6.2 8.3.6.3 8.4 8.4.1 8.4.2 8.4.3 8.4.4 8.4.5 9 9.1 9.1.1 9.1.2 9.1.3 9.2 9.2.1 9.2.2 9.2.3 9.3 9.3.1 9.3.2 9.3.3 9.4 9.4.1 9.4.2 9.4.3 10 1 Defi
22、nition 33 Method of measurement . 33 Limit . 34 Definition 34 General conditions . 34 Co-channel rejection 35 Degradation measurements 34 Definition . 35 Method of measurement 35 Limit 35 Adjacent channel selectivity . 35 Definition . 35 Method of measurement 36 Limit 36 Spurious response rejection
23、and desensitization 36 Definition . 36 Method ofmeaswement 37 Limits . 37 Intermodulation response rejection . 38 Definition . 38 Method of measurement 38 Limits . 38 Spurious emissions 39 Definition 39 Method of measurement . conducted spurious emissions . 39 Method of measurement . cabinet radiati
24、on 39 Method of measurement . radiated spurious components . 40 Limit . 40 Method of measurements and limits for transponders 41 Transponder sensitivity 41 Definition 41 Method of measurement . 41 Limit . 42 Transponder wake-up protection 42 Definition 42 Method of measurement . 42 Limit . 43 Defini
25、tion 43 Method of measurement . 44 Limits 44 Transponder spurious radiation 44 Definition 44 Method of measurement . 44 Limits 45 Transponder conversion gain . 43 Measurement uncertainty 45 Annex A (normative): Radiated measurements . 46 Outdoor test site 46 A . 1 A.l.l A.l.l.l Standard position . 4
26、6 A . 1.2 Test antenna 47 A . 1.3 Substitution antenna 47 A . 1.4 Optional additional indoor site . 47 A.2 A.2.2 Test antenna 48 A.2.3 Substitution antenna 49 A.2.4 Auxiliary cables 49 Test sites and general arrangements for measurements involving the use of radiated fields 46 Guidance on the use of
27、 radiation test sites . 48 A.2.1 Measuring distance 48 ETSI 6 ETSI EN 300 761-1 V1.2.1 (2001-06) A.3 A.3.1 A.3.2 A.3.3 Annex B (normative): Further optional alternative indoor test site using a fully anechoic RF chamber . 49 Example of the construction of a shielded anechoic chamber 49 Influence of
28、parasitic reflections in anechoic chambers 50 Calibration of the shielded RF anechoic chamber . 50 General description of measurement methods 52 B.l Conducted measurements 52 B.2 Radiated measurements . 52 Annex C (normative): Receiver methods of measurements using messages . 54 C.2 Test signals . 5
29、4 Method of measurement for receiver sensitivity 54 C . 1 General . 54 C.3 C.4 Annex D (informative): D . 1 Annex E (informative): Bibliography . 57 History . 58 Method of measurements for receiver degradation 55 Clauses of the present document relevant for compliance with the essential requirements
30、 EC Council Directives 56 Compliance with 1999/5/EC (R Essential, orpotentially Essential, IPRs notjed to ETSI in respect OfETSIstandards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (htt:/!wvw.etsi ordj r). Pursuant to the ETSI IPR Policy, no i
31、nvestigation, 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 O00 3 14 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European St
32、andard (Telecommunications series) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (EM). For non EU countries the present document may be used for regulatory (Type approval or conformity to the R Automatic Vehicle Identification (AVI) for railwa
33、ys operating in the 2,45 GHz frequency range, as identified below: Part 1: “Technical characteristics and methods of measurement“; Part 2: “Harmonized standard covering essential requirements under article 3.2 of the R these parameters are covered by annex 4 of CEPT/ERC Recommendation 70-03 i. ETSI
34、9 ETSI EN 300 761-1 V1.2.1 (2001-06) 1 Scope The present document applies to a dedicated 2,45 GHz Short Range Device (SRD) microwave link intended for a European wide data communication system for Railway applications, Automatic Vehicle Identification (AVI).which fulfil the relevant Union Internatio
35、nale des Chemins de fer (UIC) specifications (see Bibliography) and are interoperable with the current UIC system except for the interrogator (Track Units (TU) bandwidth. The present document contains the technical characteristics for radio equipment and is referenced by CEPT/ERC Recommendation T/R
36、70-03 i. The Interrogator bandwidth is limited to 8 MHz shared within five channels: - - for data transmission only; - with a Radio Frequency (RF) output connection and specified antenna or with an integral antenna; operating on radio frequencies in the 2,446 GHz to 2,454 GHz Industrial, Scientific
37、and Medical (ISM) band, with power levels up to 500 mW e.i.r.p. The present document is a product standard covering various Railway applications where the data transmission of the system will be active only during the presence of the train. The present document covers fixed installed interrogators (
38、TUS) and transponders (mobile stations). For certain measurements the transponders are measured together with the whole interrogating system. The in-track base station (interrogator) transmit and receive modulations are a combination of Amplitude Shift Keying (ASK) and Frequency Shift Keying (FSK) r
39、espectively. The present document supports the necessary transmitter and receiver data rates between 192 kbit/s and 3 84 kbit/s according to the type of transaction. It covers the minimum characteristics considered necessary in order to make the best use of the available frequencies. It does not nec
40、essarily include all the characteristics which may be required by a user, nor does it necessarily represent the optimum performance achievable. The present document includes specifications for methods of measurement for equipment fitted with antenna sockets andor integral antenna. Additional standar
41、ds or specifications may be required for equipment such as that intended for connection to the Public Switched Telephone Network (PSTN) or other systems. 2 Re fe re nces The following documents contain provisions which, through reference in this text, constitute provisions of the present document. R
42、eferences are either specific (identified by date of publication andor 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. il Pl CEPT/ERC Recommendation70-03 (2001): “Relating to the
43、 use of Short Range Devices (SRD)“. CISPR 16- 1 : “Specification for radio disturbance and immunity measuring apparatus and methods; Part 1 : Radio disturbance and immunity measuring apparatus“. ITU-T Recommendation O. 153: “Basic parameters for the measurement of error performance at bit rates belo
44、w the primary rate“. 31 ETSI 10 ETSI EN 300 761-1 V1.2.1 (2001-06) 41 ETSI ETR 028: “Radio Equipment and Systems (RES); Uncertainties in the measurement of mobile radio equipment characteristics“. IEC 60721-3-4 (1995): “Classification of environmental conditions - Part 3: Classification of groups of
45、 environmental parameters and their severities - Section 4: Stationary use at non-weatherprotected locations“. ITU-T Recommendation 0.41: “Psophometer for use on telephone-type circuits“ 51 61 3 Definitions, symbols and abbreviations 3.1 Defi nit ions For the purposes of the present document, the fo
46、llowing terms and definitions apply: assigned frequency band: frequency band within which the device is authorized to operate integral antenna: permanent fixed antenna, which may be built-in, designed as an indispensable part of the equipment conducted measurements: measurements which are made using
47、 a direct connection to the equipment under test identification system: equipment consisting of a transmitter(s), receiver(s) (or a combination of the two) and an antenna(s) to identi objects by means of a transponder interrogator: equipment intended for use in a fixed location (Fixed Station (FS) m
48、anufacturer: manufacturer means the manufacturer or his official representative operating frequency range: range of operating frequencies over which the equipment can be adjusted through switching, tuning or reprogramming portable equipment: equipment intended to be carried, attached or implanted ra
49、diated measurements: measurements which involve the absolute measurement of a radiated field transponder: device normally fixed in a vehicle which responds to an interrogating signal 3.2 Symbols For the purposes of the present document, the following symbols apply: h wavelength E field strength EO f0 frequency of operation R distance (see annex B) RO reference field strength (see annex B) reference distance (see annex B) 3.3 Ab brevi at ions For the purposes of the present document, the following abbreviations apply: AB ASK AV1 CG dBi dBm e.i.r.p FS Allocated Band Am
