In Bechar the question was raised, how high is the difference of losses when providing 90 radials instead of 120 radials. See below the rough calculation:
in case of a transmitting power of 400 kW and 120 radials the losses in the ground screen are given by 4,49 kW. When reducing the radials from 120 to 90 the losses are increased from 4,49 kW to 5,91 kW.
The results are given in the following table:
radials
|
losses/%
|
losses/dB
|
120
|
1,12
|
0,049
|
90
|
1,48
|
0,065
|
It is obvious that the difference of losses is litttle comparing 90 and 120 radials.
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