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A17.5.1 A17.5.1

According to ITU-R Rec. P.452-5 the median path loss between transmitter and receiver is given by the following equation:

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body ${{L}_{bd}}(p)=92.5+20\log f+20\log d+{{L}_{d}}(p)+{{A}_{g}}$

  (Eq. 207216)

where:

 L_bd 

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body ${{L}_{bd}}(p)$

          is  is the basic loss in dB as function of the time percentage  in %

 f

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body $f$

                  is  is the frequency in GHz

d

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body $d$

                    is  is the distance in km

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body ${{L}_{d}}(p)$

            is  is the diffraction loss in dB as function of the time percentage  in %

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body ${{A}_{g}}$

                  is  is the attenuation due to atmospheric gas and water in dB