Discussion
What does a reverberation chamber measure for an antenna?
Answer: D
A stirred reflective chamber creates a statistically uniform field, so the received or radiated power can be integrated over all directions and polarisations without measuring the pattern at all. That gives total radiated power and, with the input power, the efficiency. Pattern and impedance are measured by other means, and polarisation information is deliberately averaged away, which is exactly what makes the measurement fast and pattern independent.
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