CONTENTS

 1     Introduction
 2     Radar sounder characteristics and operation
        2.1     Mission objectives
        2.2     Design parameters
        2.3     Orbital parameters
        2.4     Operational limitations
        2.5     Footprint of radar sounder
        2.6     Emission spectrum
 3     Overview of incumbent services operating within and in the vicinity of the 40-50 MHz frequency band
 4     Study methodology
        4.1     Calculation of the observed I/N and the interference exceedance level
                  4.1.1     Computation of the received interference power
                  4.1.2     Computation of the received noise power spectral density
 5     Set-up for sharing studies
 6     Summary of the results of sharing studies
Annex 1  Sharing and compatibility studies using the peak power based interference analysis
       A1.1     Worst case scenario type link budget static analysis results
       A1.2     In-band primary service dynamic analysis based sharing studies
                  A1.2.1     Fixed service dynamic analysis based sharing studies
                  A1.2.2     Mobile service dynamic analysis based sharing studies
                  A1.2.3     Broadcasting service dynamic analysis based sharing studies
       A1.3     In-band secondary service dynamic analysis based sharing studies
                  A1.3.1     Radiolocation service sharing studies
                  A1.3.2     Space research service sharing studies
       A1.4     Selected out-of-band dynamic analysis based sharing studies
                  A1.4.1     Amateur service (50-54 MHz) dynamic analysis based sharing studies
       A1.5     Complementary cumulative distribution function profiles of the interference exceedance level
Annex 2  Sharing and compatibility studies using the mean power based interference analysis
       A2.1     Complementary cumulative distribution function profiles of the interference exceedance level
       A2.2     Analysis of the temporal interference from EESS (active) into the mobile service
       A2.3     Alternative calculation on the interference from EESS (active) into WPR performed over a specific WPR location (mean power scenario)
Annex 3  Determination of the pfd of the spaceborne radar sounder and the pfd for the protection of incumbent services
       A3.1     Power flux-density of the spaceborne radar sounder considered in the Report
       A3.2     Determination of relevant pfd levels for the protection of incumbent services – Generic approach
       A3.3     Determination of relevant pfd levels for the protection of incumbent services – Specific approach
Annex 4  Sensitivity analysis – Considerations related to reduced operational duty cycle in polar regions