Document ID: chunk:federal_register_of_legislation:F2020L01460:reg:10:p2
Version: federal_register_of_legislation:F2020L01460
Segment Type: reg
Provision Reference: reg 10 (pt 2/4)
Character Range: 18765–21700

of radiocommunications transmitters is taken:
         (a) to be equal for each bearing σn; and
         (b) to have a value that is equal to the maximum horizontally radiated power, in any direction, of any of the radiocommunications transmitters in the group.
        Note: n is the bearing of the nth-degree radial for the group of radiocommunications transmitters.

Part 2  Device boundary criterion
   1. The device boundary criterion is the value of the mathematical expression:
       RP – MP
       where:
      MP                 :  is PL(lmn,Lmn) + LOP – Gr;

      RP                 :  is the horizontally radiated power, measured in dBm EIRP per MHz, for each bearing, σn;

      Note:                 For a device with an active antenna system, the RP at bearing σn is defined as the sum of the gain of the antenna towards the horizontal plane and towards azimuth σn (dB) and the total radiated power (dBm). This allowance is based on the assumption that beam pointing angles and/or power can be controlled dynamically to ensure RP is not exceeded.

      LOP                :  is the level of protection. For radiocommunications transmitters that incorporate active antenna system (AAS), the LOP is -102 dBm per MHz. For radiocommunications transmitters without AAS, the LOP is –110 dBm per MHz;

      Gr                 :  is the nominal radiocommunications receiver antenna gain including feeder loss set to 0 dBi;

      PL(lmn,Lmn)        :  is the propagation loss (dB) (calculated under Part 3 of this Schedule) of the mth increment on the nth radial.

Part 3  Calculation of propagation loss
   1. Subject to this Part 3, the propagation loss (or PL(lmn,Lmn)), for a radiocommunications transmitter, of the mth increment on the nth radial is calculated using:
         (a) for a transmitter connected to an antenna which is located greater than 6 metres above ground level – the method and parameters defined in section 2.2 of Recommendation ITU-R P.525-4 and in section 4.5.2 of Recommendation ITU-R P.526-15;
         (b) for a transmitter connected to an antenna which is located at or below 6 metres above ground level – the method and parameters defined in section 2.2 of Recommendation ITU-R P.525-4, in section 4.5.2 of Recommendation ITU-R P.526-15 and in section 3.2 of Recommendation ITU-R P.2108-0.
   2. In implementing the method in section 4.5.2 of Recommendation ITU-R P.526-15:
         (a) the height of the nominal receiver is 5 metres above ground level;
         (b) the height of the transmitter above ground level is determined in accordance with Part 1 of Schedule 3 to this instrument; and
         (c) the height of a profile point is determined in accordance with Part 2 of Schedule 3 to this instrument.
   3. In implementing the method in section 4.5.2 of Recommendation ITU-R P.526-15:
         (a) the path profile is developed by sampling the DEM-3S at 100 metre increments along