1、 ETSI EN 302 077-2 V1.1.1 (2005-01)Candidate Harmonized European Standard (Telecommunications series) Electromagnetic compatibilityand Radio spectrum Matters (ERM);Transmitting equipment for theTerrestrial - Digital Audio Broadcasting (T-DAB) service;Part 2: Harmonized EN under article 3.2of the R E
2、ssential, or potentially Essential, IPRs notified 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,
3、has been carried out by ETSI. No guarantee can 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 Candidate Harmonized European Standard (Telecommun
4、ications series) has been produced by ETSI Technical Committee Electromagnetic compatibility and Radio spectrum Matters (ERM). The present document is part 2 of a multi-part deliverable covering the Electromagnetic compatibility and Radio spectrum Matters (ERM); Transmitting equipment for the Terres
5、trial - Digital Audio Broadcasting (T-DAB) service, as identified below: Part 1: “Technical characteristics and test methods“; Part 2: “Harmonized EN under article 3.2 of the R it provides scope for standards to be added: - under article 3.2 when new frequency bands are agreed; or - under article 3.
6、3 should the Commission take the necessary decisions without requiring alteration of standards that are already published; it clarifies, simplifies and promotes the usage of Harmonized Standards as the relevant means of conformity assessment. Other document directly associated with the present docum
7、ent: EN 302 077-1 5; EN 301 489-11 6. ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 7 1 Scope The present document applies to the following radio telecommunications terminal equipment types: Terrestrial - Digital Audio Broadcast equipment used in the sound broadcasting service. NOTE 1: At the time the pre
8、sent document was drafted the following bands were allocated to T-DAB (Wiesbaden agreement, Maastricht agreement (see bibliography): square4 47 MHz to 68 MHz; square4 174 MHz to 240 MHz; square4 1 452 MHz to 1 492 MHz. The present document is intended to cover the provisions of article 3.2 of Direct
9、ive 1999/5/EC 2 (R Transmitting equipment for the Terrestrial - Digital Audio Broadcasting (T-DAB) service; Part 1: Technical characteristics and test methods“. 6 ETSI EN 301 489-11: “Electromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for rad
10、io equipment and services; Part 11: Specific conditions for terrestrial sound broadcasting service transmitters“. ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 8 7 CENELEC EN 55022: “Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement“. 8 CENELEC EN 550
11、11: “Industrial, scientific and medical (ISM) radio-frequency equipment - Radio disturbance characteristics - Limits and methods of measurement“. 9 IEC 60489-1 amendment 2: “Methods of measurement for radio equipment used in the mobile services. Part 1: General definitions and standard conditions of
12、 measurement“. 10 ETSI TR 100 028 (all parts): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics“. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the terms an
13、d definitions given in the R b) the highest operating frequency of the EUT; c) a frequency mid-way between a) and b) above. Test arrangement: (see figure A.1) 1) all ports unused at the time of testing shall be correctly terminated; 2) connect the EUT to the Test Load, via the Coupling Device or via
14、 the attenuator; 3) connect the measuring device to the Coupling Device or attenuator. 4.2.1.2.2 Procedure 1) operate the EUT at each of the test frequencies as defined in clause 4.2.1.2.1; 2) measure the results on the Spectrum Analyser. 4.2.1.2.3 Test requirements The results obtained shall be com
15、pared to the limits in clause 4.2.1.3 in order to demonstrate compliance. 4.2.1.3 Limit Spurious emissions shall not exceed the values set out in table 4.1, shown additionally in figures 4.1 and 4.2, for the frequency range 9 kHz to 1 GHz or 3rdHarmonic whichever is higher. NOTE: In the case of a T-
16、DAB transmitter supplied without an internal bandpass output filter, the manufacturer shall specify the characteristics of the filter necessary to fulfil the spurious emission limits defined in table 4.1. The manufacturer shall include this information in their test report. Table 4.1: Spurious emiss
17、ions limits Frequency range of the spurious emission (MHz) Limits of the spurious emission Reference bandwidth (kHz) Figure 9 kHz - 174 -36 dBm (250 nW) 100 4.1 174 - 400 -82 dBm, for P 400 - 1 000 -36 dBm (250 nW) 100 4.1 1 000 - 1 452 -30 dBm (1 W) 100 4.1 1 452 - 1 492 -62 dBm, for P 1 492 -30 dB
18、m (1 W) 100 4.1 NOTE: P = mean power of the transmitter. ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 11Ratio ofspuriousemissiontomean power(reference bandwidth100 kHz)Mean power of the transmitter30 50 60 70 80 90 dBm1 W 10 W 100 W 1 kW 10 kW 100 kW 1 MW2,5 5 25 50 250 500 2,5 5 250 50025 50-30 dBm ( 1W
19、)-100-90-80-709 kHz - 174 MHz 400 MHz - 1 000 MHz 1 000 MHz - 1452 MHz 1 492 MHzdBc40-110-36 dBm (250nW)Figure 4.1: Spurious emissions limits for T-DAB transmitters (100 kHz reference bandwidth) Ratio ofspuriousemissiontomean power(reference bandwidth4 kHz)-130Mean power of the transmitter30 40 50 6
20、0 70 80 90 dBm1 W 10 W 100 W 1 kW 10 kW 100 kW 1 MW2,5 5 25 50 250 500 2,5 5 250 50025 50-82 dBm ( 6,3pW)-120-110-100-90 174 MHz - 400 MHz 1 452 MHz - 1492 MHzdBc-66 dBm (0,25nW)-62 dBm ( 630pW)-46 dBm (25 nW)Figure 4.2: Spurious emissions limits for T-DAB transmitters (4 kHz reference bandwidth) ET
21、SI ETSI EN 302 077-2 V1.1.1 (2005-01) 124.2.2 Out-of-band emissions 4.2.2.1 Definition Emission on a frequency or frequencies immediately outside the necessary bandwidth which results from the modulation process, but excludes spurious emissions. For the purposes of the present document out-of-band e
22、missions are emissions at frequencies outside the necessary bandwidth and within the frequency range f0 3 MHz, where f0is the centre frequency of the transmission, irrespective of the number of carriers employed. 4.2.2.2 Method of measurement (essential test suite) 4.2.2.2.1 Initial conditions Test
23、environment: The normal operating environment, as declared by the equipment manufacturer. Test frequencies: a) the lowest operating frequency of the EUT; b) the highest operating frequency of the EUT; c) a frequency mid-way between a) and b) above. Test arrangement: (see figure A.2). 4.2.2.2.2 Proce
24、dure 1) all ports unused at the time of testing shall be correctly terminated; 2) operate the EUT at each of the test frequencies as defined in clause 4.2.2.2.1 and in each relevant T-DAB operating mode; 3) measure the results on the Spectrum Analyser. 4.2.2.2.3 Test requirements The results obtaine
25、d shall be compared to the limits in clause 4.2.2.3 in order to demonstrate compliance. 4.2.2.3 Limit Out-of-band emissions shall not exceed the limits specified in tables 4.2 and 4.3, additionally shown in figures 4.3 and 4.4. Out-of-band emissions limits are given as mean power level measured in a
26、 4 kHz bandwidth, where 0 dB corresponds to the mean output power. Unless otherwise declared by the manufacturer it shall be assumed that the EUT conforms to the non-critical case (case2). Case 1: The solid line mask shall apply to VHF T-DAB transmitters operating in areas critical for adjacent chan
27、nel T-DAB to T-DAB interference, and in any case when it is necessary to protect other services operating on adjacent frequencies on a primary basis. Case 2: The dashed line mask shall apply to VHF T-DAB transmitters in other cases and to 1,5 GHz T-DAB transmitters. Case 3: The solid line mask shall
28、 apply to VHF T-DAB transmitters in exceptional circumstances to protect safety services. ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 13Case 4: The chain dotted line mask shall apply to VHF T-DAB transmitters operating in channel 12D and on a case by case basis in certain areas. NOTE: In the case of a T
29、-DAB transmitter supplied without an internal bandpass output filter, the manufacturer shall specify the characteristics of the filter necessary to fulfil the out-of-band emission masks defined in tables 4.2 and 4.3. The manufacturer shall include this information in their test report. Table 4.2: Tr
30、ansmitters operating with output power between 25 W and 1 000 W Classification accordingly the frequency assignment 1,54 MHz block, frequency difference from the centre frequency (MHz) Relative level (dBc) 0,97 -26 0,97 -56 VHF T-DAB transmitters operating in uncritical cases or in the L-band (case
31、2) 3,0 -106 0,77 -26 0,97 -71 1,75 -106 VHF T-DAB transmitters operating in critical cases (case 1) 3,0 -106 0,77 -26 0,97 -71 2,2 -126 VHF T-DAB transmitters operating in exceptional circumstances to protect safety services (case 3) 3,0 -126 0,77 -26 0,97 -78 2,2 -126 VHF T-DAB transmitters operati
32、ng in the channel 12D and certain areas (case 4) 3,0 -126 Table 4.3: Transmitters operating with output power 1 000 W Absolute level (dBm) for transmitter with output power Classification accordingly the frequency assignment 1,54 MHz block, frequency difference from the centre frequency (MHz) 1 000
33、W 0,97 18 34 0,97 -12 4 VHF T-DAB transmitters operating in uncritical cases or in the L- band (case 2) 3,0 -62 -46 0,77 18 34 0,97 -27 -11 1,75 -62 -46 VHF T-DAB transmitters operating in critical cases (case 1) 3,0 -62 -46 0,77 18 -34 0,97 -27 -11 2,2 -82 -66 VHF T-DAB transmitters operating in ex
34、ceptional circumstances to protect safety services (case 3) 3,0 -82 -66 0,77 18 -34 0,97 -34 -18 2,2 -82 -66 VHF T-DAB transmitters operating in the channel 12D and certain areas (case 4) 3,0 -82 -66 ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 14-10-20-30-40-50-60-70-80-90-100-110-130-120-710MHz-1,5-2 1
35、,5 20,5-0,97 0,970,770f0dB2,5 3-2,5-3-10-20-30-70-100-106-26dBc-0,51,75-1,75-0,77-56-40-45-50-60-80-90Spectrum masks for:- VHF T-DAB transmitters operating in uncritical cases or in the L- band(case 2)- VHF T-DAB transmitters operating in critical cases (case 1)-1 1Ratio ofout-of-band powermeasuredi
36、n 4kHzbandwidthtomean powerin a 1,5 MHzT-DABblockFrequency difference from centre frequency (MHz)Ratio ofout-of-band powermeasuredin 4kHzbandwidthtoin-band powermeasured in 4kHzbandwidthFigure 4.3: Spectrum masks for T-DAB out-of-band emissions (case 1 and case 2) ETSI ETSI EN 302 077-2 V1.1.1 (2005
37、-01) 15-10-20-30-40-50-60-70-80-90-100-110-130-120-71-520MHz-1,5-2 1,5 20,5-0,97 0,970,770f0dB2,5 3-2,5-3-10-20-30-70-100-78-126-26dBc-0,52,2-2,2-0,77-40-45-50-60-80-90Spectrum masks for:- VHF T-DAB transmitters operating in exceptional circumstances to protect safty services (case 3)- VHF T-DAB tra
38、nsmitters operating in the channel 12D and certain areas (case 4)-1 1Ratio ofout-of-band powermeasuredin 4kHzbandwidthtothe mean powerin a 1,5 MHzT-DABblockFrequency difference from centre frequency (MHz)Ratio ofout-of-band powermeasuredin 4kHzbandwidthtoin-band powermeasured in 4kHzbandwidthFigure
39、4.4: Spectrum masks for T-DAB out-of-band emissions (case 3 and case 4) ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 164.3 Enclosure port measurements (radiated emissions) 4.3.1 Cabinet radiation 4.3.1.1 Definition Emissions from the equipment, radiated from the enclosure port, other than those present a
40、t the antenna port. 4.3.1.2 Method of test (essential test suite) 4.3.1.2.1 Initial conditions Test environment: The normal operating environment, as declared by the equipment manufacturer. Test frequencies: a) the lowest operating frequency of the EUT; b) the highest operating frequency of the EUT;
41、 c) a frequency mid-way between a) and b) above. Test arrangement: (see figure A.3). For the purposes of this test no test signal is required, the manufacturer shall ensure that the full rated output power of the transmitter will be maintained during this test. 4.3.1.2.2 Procedure The test method sh
42、all be in accordance with EN 55022 7, unless physical size is a restriction, in which case the test method shall be in accordance with EN 55011 8. measurements shall be made outside the exclusion band (see table 4.4); measurements shall be made in the operational mode producing the largest emission
43、in the frequency band being investigated consistent with normal applications; the equipment shall be configured in a manner which is representative of a normal/typical operation, where practical; an attempt shall be made to maximize the detected radiated emission, e.g. by moving the cables of the eq
44、uipment; the configuration and mode of operation during measurements shall be precisely noted in the test report; RF input/output ports shall be correctly terminated; the tests shall be carried out at a point within the specified normal operating environmental range and at the rated supply voltage f
45、or the equipment. 4.3.1.2.3 Test requirements The results obtained shall be compared to the limits in clause 4.3.1.3 in order to demonstrate compliance. ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 174.3.1.3 Limit Radiated emissions shall not exceed the values set out in table 4.4, shown additionally in
46、figure 4.5, for the frequency range 30 MHz to the upper limit. This test shall be performed at a distance of 10 m, where feasible. When size and/or power requirements necessitate testing in a manufacturing facility, other distances may be used (see notes 1 to 3). Tests shall not be carried out in th
47、e exclusion band (see note 2 in table 4.4). Table 4.4: Cabinet radiation limits Quasi-peak limits (dBV/m) at 10 m (see notes 1 and 2) Frequency range 30 dBV/m 60 + 10 log10 (P0/2 000) 70 dBV/m 30 MHz to 230 MHz 37 dBV/m 67 + 10 log10 (P0/2 000) 77 dBV/m 230 MHz to Upper limit NOTE 1: P0= RF output p
48、ower in W. NOTE 2: The exclusion band for the transmitter extends from Fc-3 MHz to Fc + 3 MHz, where Fc is the operating frequency in MHz. NOTE 3: Upper frequency limit = 1 GHz or 3rdHarmonic, whichever is higher. NOTE 1: The measurements can be carried out at other distances. In that case limits ar
49、e modified according to the relation: L(x) = L(10m) + 20 log (10/x) where x = distance in meter (m). NOTE 2: Care should be taken if measuring at test distances below 10 m as this may be in the near field. NOTE 3: In cases of dispute the measurement distance of 10 m shall take precedence. ETSI ETSI EN 302 077-2 V1.1.1 (2005-01) 18dBV/m7060504030Mean power of the transmitter30 40 50 60 70 80 90 dBm1 W 10 W 100 W 1 kW 10 kW 100 kW 1 MW2,5 5 25 50 250 500 2,5 5 250 50025 5030 MHz - 230 MHz 230 MHz - to
