1、 ETSI EN 302 752 V1.1.1 (2009-02)Harmonized European Standard (Telecommunications series) Electromagnetic compatibilityand Radio spectrum Matters (ERM);Active radar target enhancers;Harmonized EN covering the essential requirementsof article 3.2 of the R Essential, or potentially Essential, IPRs not
2、ified 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 c
3、an 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 Harmonized European Standard (Telecommunications series) has been produced by ETSI Technical C
4、ommittee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document has been produced by ETSI in response to a mandate from the European Commission issued under Council Directive 98/34/EC i.4 (as amended) laying down a procedure for the provision of information in the field
5、 of technical standards and regulations. The present document is intended to become a Harmonized Standard, the reference of which will be published in the Official Journal of the European Communities referencing the Directive 1999/5/EC i.1 of the European Parliament and of the Council of 9 March 199
6、9 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity (“the R - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online
7、 referenced documents, information sufficient to identify and locate the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the expected life of
8、the document. The reference shall include the method of access to the referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarant
9、ee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amen
10、dments) applies. 1 CENELEC EN 60945 (Edition 4 - 2002): “Maritime navigation and radiocommunication equipment and systems - General requirements - Methods of testing and required test results“. 2 ITU-R Recommendation SM.329-10 (2003): “Unwanted emissions in the spurious domain“. 3 ITU-R Recommendati
11、on SM.1541-1 (2002): “Unwanted emissions in the out-of-band domain“. 4 ANSI C63.5 (2006): “American National Standard for Calibration of Antennas Used for Radiated Emission Measurements in Electro Magnetic Interference“. ETSI ETSI EN 302 752 V1.1.1 (2009-02) 7 5 ETSI TR 102 273 (V1.2.1) (all parts):
12、 “Electromagnetic compatibility and Radio spectrum Matters (ERM);Improvement on Radiated Methods of Measurement (using test site) and evaluation of the corresponding measurement uncertainties“. 6 ETSI TR 100 028 (V1.4.1) (all parts): “Electromagnetic compatibility and Radio spectrum Matters (ERM); U
13、ncertainties in the measurement of mobile radio equipment characteristics“. 7 IEC 62388: “Maritime navigation and radiocommunication equipment and systems - Shipborne radar - Performance requirements, methods of testing and required test results“. 8 IEC 62252: “Maritime navigation and radiocommunica
14、tion equipment and systems - Radar for craft not in compliance with IMO SOLAS Chapter V - Performance requirements, methods of test and required test results“. 2.2 Informative references The following referenced documents are not essential to the use of the present document but they assist the user
15、with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. i.1 Directive 1999/5/EC of The European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment
16、and the mutual recognition of their conformity (R parasitic emissions (independent, accidentally); intermodulation (between oscillator- and operation frequency or between oscillator and harmonics). 4.2.5.2 Limits Out of band domain emissions do not apply to devices of this power (see ITU-R Recommend
17、ation SM.1541-1 3) and so only the Spurious domain emission limits will apply to an active reflector. The reflector shall meet the requirements of table 2 of ITU-R Recommendation SM.329-10 2 with the Category A limits for radiodetermination service equipment. 4.2.5.3 Conformance Conformance tests as
18、 defined in clause 5.3.5 shall be carried out. ETSI ETSI EN 302 752 V1.1.1 (2009-02) 105 Testing for compliance with technical requirements 5.1 Test conditions, power supply and ambient temperatures 5.1.1 Standard operating mode of the RTE equipment Unless otherwise stated the RTE equipment shall be
19、 set to the standard operating mode as indicated in the manufacturers instructions. 5.1.2 Normal test conditions 5.1.2.1 Normal temperature and humidity The temperature and humidity conditions for tests shall be a combination of temperature and humidity within the following ranges: a) temperature: +
20、15 C to +35 C; or within the manufacturers stated operating range and stated in the report. b) relative humidity: 20 % to 75 %. When the relative humidity is lower than 20 %, it shall be stated in the test report. 5.1.2.2 Normal test power supply 5.1.2.2.1 AC test power supply The test voltage for e
21、quipment to be connected to an AC supply shall be the nominal mains voltage declared by the manufacturer -10 % to +10 %. For the purpose of the present document, the nominal voltage shall be the declared voltage or any of the declared voltages for which the equipment is indicated as having been desi
22、gned. The frequency of the test voltage shall be 50 Hz 1 Hz. 5.1.2.2.2 DC test power supply Where the equipment is designed to operate from a DC source, the normal test voltage shall be the nominal voltage as declared by the manufacturer -10 % to +20 %. The internal impedance of the test power sourc
23、e 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 le
24、vel at the beginning of each test. 5.1.3 Extreme test conditions 5.1.3.1 Extreme temperatures 5.1.3.1.1 Indoor unit The temperature and humidity conditions for extreme tests shall be a combination of nominal temperature and humidity within the following ranges: a) temperature: 0 C to +40 C; b) relat
25、ive humidity: 20 % to 75 %. When the relative humidity is lower than 20 %, it shall be stated in the test report. ETSI ETSI EN 302 752 V1.1.1 (2009-02) 115.1.3.1.2 Outdoor unit The temperature and humidity conditions for extreme tests shall be a combination of nominal temperature and humidity within
26、 the following ranges: a) temperature: -20 C to +55 C; b) relative humidity: 20 % to 93 %. When the relative humidity is lower than 20 %, it shall be stated in the test report. 5.1.3.2 Extreme power supply voltage test conditions Extreme values of test power sources are detailed in table 2. Table 2:
27、 Extreme power supply voltage and frequency tolerances Power supply Voltage variation % Frequency variation % AC 10 5 DC +20 -10 Not applicable 5.1.4 Excitation Signals A suitable RF signal generator shall be used to simulate the radar signal typical of a modern marine radar conforming to IEC 62388
28、7 or IEC 62252 8. 5.1.4.1 Test Signal for X-Band testing The signal shall be a pulsed carrier of 9,4 GHz with a repetition frequency of 1 kHz. The rise time and decay time between the 10 % and 90 % values of the pulse amplitude shall be 20 ns 5 ns. The duration of the pulses between the 90 % values
29、shall be 500 ns 50 ns. A typical 25 kw X-Band radar will give a power density at 1 nm (typical range at which saturation starts) of some 0,58 W/m and the signal generator used shall be capable of producing a variable level at the RTE which encompasses this figure. 5.1.4.2 Test Signal for S-Band test
30、ing The signal shall be a pulsed carrier of 3,05 GHz with a repetition frequency of 1 kHz. The rise time and decay time between the 10 % and 90 % values of the pulse amplitude shall be 20 ns 5 ns. The duration of the pulses between the 90 % values shall be 500 ns 50 ns. A typical 30 kw S-Band radar
31、will give a power density at 1 nm (typical range at which saturation starts) of some 0,28 W/m and the signal generator used shall be capable of producing a variable level at the RTE which encompasses this figure. 5.2 Interpretation of the measurement results The interpretation of the results recorde
32、d in a test report for the measurements described in the present document shall be as follows: the measured value related to the corresponding limit shall be used to decide whether an equipment meets the requirements of the present document; the value of the measurement uncertainty for the measureme
33、nt of each parameter shall be included in the test report; the recorded value of the measurement uncertainty shall be, for each measurement, equal to or lower than the figures in table 3. ETSI ETSI EN 302 752 V1.1.1 (2009-02) 12For the test methods, according to the present document, the measurement
34、 uncertainty figures shall be calculated in accordance with TR 100 028 6 and shall correspond to an expansion factor (coverage factor) k = 1,96 or k = 2 (which provide confidence levels of respectively 95 % and 95,45 % in the case where the distributions characterizing the actual measurement uncerta
35、inties are normal (Gaussian). Table 3 is based on such expansion factors. Table 3: Absolute measurement uncertainties: maximum values Parameter Maximum uncertainty RF frequency 1 x 10-7RF power 1,5 dB Radiated emissions 6 dB Pulse duration time 10 % 5.3 Essential radio test suites 5.3.1 Radiated emi
36、ssions On a test site selected from annex B, the RTE shall be placed on a non-conductive support with a height of 1,5 m. When the RTE consists of more than one unit, the interconnecting cables shall have the maximum length and type as declared by the manufacturer or 20 m, whichever is shorter. Avail
37、able input and output ports of the ancillary equipment under test shall be connected to the maximum length of cable as declared by the manufacturer or 20 m, whichever is shorter. Such cables shall be terminated to simulate the impedance of the relevant ports of the radio equipment. These cables shal
38、l be bundled at the approximate centre of the cable with the bundles of 30 cm to 40 cm in length running in the horizontal plane from the port to which it is connected. If it is impractical to do so because of cable bulk or stiffness, the disposition of the excess cable shall be precisely noted in t
39、he test report. The test antenna shall be placed at a radial distance of 3 m from the edge of the minimum dimension circle, the smallest dimension circle in the horizontal plane that encloses all elements of the indoor- and the outdoor - units, at a height of 1,5 m above the ground plane. The exciti
40、ng signal antenna shall be placed at a radial distance of 3 m from the edge of the minimum dimension circle diametrically opposite the test antenna and shall be connected to a suitable RF signal generator. The level of the output of this generator shall be increased until the maximum RF output from
41、the RTE is obtained. The test method shall be according to EN 60945 1. The radiated emission of the RTE shall be measured in the frequency range 150 kHz to 2 GHz. The results obtained shall be compared to the limits in clause 4.2.1.2 in order to prove compliance with the requirement. 5.3.2 Operating
42、 frequency On a test site selected from annex B, the RTE shall be placed according to the manufacturers installation instructions at a height of 1,5 m. The measurement antenna shall be placed at a radial distance of 3 m from the edge of the minimum dimension circle, the smallest dimension circle in
43、the horizontal plane that encloses all elements of the indoor- and the outdoor units, at a height of 1,5 m above the ground plane. The exciting signal antenna shall be placed at a radial distance of 3 m from the edge of the minimum dimension circle diametrically opposite the test antenna and shall b
44、e connected to a suitable RF signal generator. The level of the output of this generator shall be set to the level required to give the maximum RF output from the RTE. The frequency of the RTE output signal shall be measured and compared to the frequency of the exciting signal generator. Following t
45、esting using test signal clause 5.1.4.1 the test shall be repeated using test signal clause 5.1.4.2. ETSI ETSI EN 302 752 V1.1.1 (2009-02) 13The results obtained shall be compared to the limits in clause 4.2.2.2 in order to prove compliance with the requirement. 5.3.3 Radiated output power The measu
46、rements shall be made under normal test conditions. On a test site conforming to clause B.1.1, the RTE shall be placed on a non-conductive support with a height of 1,5 m or such that it is completely within the quiet zone. The test antenna shall be placed at a radial distance calculated according to
47、 clause B.2.5 at a height of 1,5 m above the floor absorber. The exciting signal antenna shall be placed at a radial distance of 3 m from the RTE positioned at 90 to the line from the test antenna to the RTE and shall be connected to a suitable RF signal generator. The level of the appropriate test
48、signal (clause 5.1.4) of this generator shall be increased until the maximum RF output from the RTE is obtained. The RTE shall be rotated through 360 around a vertical axis in order to find the direction of the maximum signal. The RTE shall now be removed and replaced with substitution antenna, in t
49、he same position and with the same polarization. The exciting signal RF generator shall be connected to this substitution antenna. The input signal to the substitution antenna shall be adjusted in level until an equal or a known related level to that detected from the transmitter is obtained in the test receiver. The maximum carrier radiated power is equal to the power supplied by the signal generator, increased by the known relationship if necessary and after corrections due to the gain of the substitution antenna a
