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In this case SEAMCAT calculates the receiver attenuation a_VLR(Df) to be applied to the interfering signal by using the following expression (see Figure 105):

                        Attenuation                        Attenuation (Df) = block_{Protection Ratio}(Df) (dB) + C/(N+I) (dB) + (N+I)/N (dB) – I/N (dB)     (Eq. 24)

                        Attenuation (Df  ) = 40 + 16 + 3 - 0 = 59 dB                                                           

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iRSS_blocking (f_it) = Pe + Ge + Gr - L -  Attenuation (Df  )      

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 Pe + Ge + Gr - L = -54.5 dBm

                      Attenuation (Df  ) = 40 + 16 + 3 - 0 = 59 dB   

                      iRSS_blocking = -54.5 - 59 = -113.5 dBm

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