Common use of Manual calculation Clause in Contracts

Manual calculation. The basic material for the manual calculation of the usable field strength in applying the simplified multiplication method is given below.1 The manual calculation needs only additions, subtractions, multiplications, divisions and the reading of a value from Table 2.4. An example with five interfering transmitters is given in Table 2.5. Experience has shown that it is expedient to begin with a value for Eu 6 dB larger than the largest of the Esi values. If the difference between 0.52 and the result (product of the 5 values of L(xi)) equals ∆, the value of Eu should be modified by ∆/0.05 to obtain a better approximation. The whole process can be repeated to obtain better accuracy. Table 2.5 shows that even after the second step, the difference between the value obtained and the precise value is of the order of 0.2 dB. 1 For further details see CCIR Report 945.

Manual calculation. The basic material for the manual calculation of the usable field strength in applying the simplified multiplication method is given below.1 The manual calculation needs only additions, subtractions, multiplications, divisions and the reading of a value from Table 2.4. An example with five interfering transmitters is given in Table 2.5. Experience has shown that it is expedient to begin with a value for Eu 6 dB larger than the largest of the Esi values. If the difference between 0.52 and the result (product of the 5 values of L(xi)) equals ∆Δ, the value of Eu should be modified by ∆/0.05 Δ/0.05 to obtain a better approximation. The whole process can be repeated to obtain better accuracy. Table 2.5 shows that even after the second step, the difference between the value obtained and the precise value is of the order of 0.2 dB. 1 For further details see CCIR Report 945.