The file contains: reports of 10th – 13th meeting held on 03-04/09/1991 (Tromsǿ), 17-18/12/1991 (Dwingeloo), 22-23/04/1992 (Noto), 20-21/10/1992 (Bonn), (chairman H. C. Kahlmann), working documents such as membership lists, letters, notes, concerning interference problems in radio astronomy.

Topics discussed include: ESF-CRAF activities; WARC 1992; GLONASS; Possibilities for coordination between the Radio Astronomy Service and the Radio determination Satellite Service in the UK; Motorola and The International Maritime Satellite Organisation (INMARSAT); UNESCO-ISCU-IAU meeting 1992; Executive report from working party 7D; Inter-union commission on the allocation of frequencies (IUCAF); CEPT – Spectrum Engineering; Terms of reference; Radio spectrum use by the Radio Astronomy Service in Europe in the frequency bands between 3.4 and 105 Ghz.

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