ITU-R PI 372-5-1990 Use of Data on Radio Noise - Section 6B - Radio Noise《无线电噪音数据的使用-无线电噪音的第6部分》.pdf

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1、CCIR VOLUME*VI 90 W 4855232 0503054 O W Rw. 372-5 3 SECTION 6B: RADIO NOISE RECOMMENDATION 372-5 USE OF DATA ON RADIO NOISE (Question 29/6) (195 1 - 1953-195611959- 1963-1974-1978-1982-1986- 1990) The CCIR, CONSIDERING (a) that Report 322 (Geneva, 1963) was based on data obtained from a network of 1

2、6 recording stations from July 1957 to October 1961 and, with a minor revision, was reissued as Report 322-2 (Geneva, 1982); (b) that the World Administrative Radio Conference (WARC-79), recognizing the significant amount of additional data available, adopted Recommendation No. 68 requesting that th

3、e CCIR encourage and assist in initiating additional studies of radio noise and recommending that administrations continue to provide rapid dissemination of noise data and of the related prediction; (c) that Interim Working Party 6/2 (Decision 21) was requested to revise Report 322-2 (Geneva, 1982)

4、and that the revised version, Report 322-3 (Dubrovnik, 1986) was subsequently approved; (d) that the Second Session of the World Administrative Radio Conference for the Planning of the HF Bands Allocated to the Broadcasting Service (Geneva, 1987) adopted for use values or the atmospheric radio noise

5、 levels based upon Report 322-2 (Geneva, 1982); (e) that additional information on the measurement and use of radio noise is given in Reports 254 and 1151; (f) that Opinion 85 urges administrations to make measurements of atmospheric radio noise, to analyse the measurement results and to evaluate th

6、e practical effects of applying noise information, UNANIMOUSLY RECOMMENDS that the information contained in Reports 258, 322, 342, 670 and 720 should be used in assessing the intensity and/or other characteristics of man-made and natural radio noise until new information to justify the revision of these Reports is made available.