CONTENTS

Policy on Intellectual Property Right (IPR)
 1     Introduction
        1.1     Radio frequency observations
 2     Space weather sensor systems using radio spectrum
        2.1     Ionospheric observations
                  2.1.1     Radionavigation-satellite service (RNSS) receiver
                  2.1.2     Radio absorption
                  2.1.3     Ionosonde
                  2.1.4     Incoherent Scatter Radar
                  2.1.5     Coherent scatter radar
                  2.1.6     Other Radar Systems
                  2.1.7     Ionospheric Tomography
                  2.1.8     Antarctic-Arctic Radiation-belt (Dynamic) Deposition – VLF Atmospheric Research Konsortium (AARDDVARK)
        2.2     Solar observations
                  2.2.1     Spectrograph Observations
                  2.2.2     Discrete Observations
 3     Technical and operational parameters of space weather sensors
 4     Appropriate radio service designations for space weather sensors
        4.1     RNSS-based observations
        4.2     Ionospheric radars and sounders
                  4.2.1     Ionospheric radars
                  4.2.2     Ionospheric sounders
        4.3     Solar Spectrographs
        4.4     Solar Flux Monitors
        4.5     Riometers
        4.6     Other systems
                  4.6.1     AARDDVARK
                  4.6.2     Scintillation monitors
 5     Regulatory aspects