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1. |
A parabolic reflector antenna used for reception of data is 1 meter in diameter and operates at 30 GHz. The far field distance of this antenna for a quadratic phase error of 22.5 degree is: |
A. | 200 meter |
B. | 50 meter |
C. | 100 meter |
D. | 150 meter |
Answer» B. 50 meter | |