Return to Main Menu Return to RA Series Menu ==================== RECOMMENDATION 517-2 - PROTECTION OF THE RADIOASTRONOMY SERVICE FROM TRANSMITTERS IN ADJACENT BANDS ANNEX 1 - Interference to the radioastronomy service from transmitters in adjacent bands 1. Introduction 2. The role of the transmitter in the production of interference 2.1 Interference from satellite transmissions 2.2 Regions of the sky denied to radioastronomy by emissions from geostationary satellites 2.3 Interference at the interference threshold levels given in Annex 1 to Recommendation 769