Using the antenna factor of a particular antenna, one can compute the
theoretical power required to create a specified E-field at a specified
distance. Without over specifying the power amplifier (assume Class A), what
minimum safety factor should be added to the theoretical values to account
for impedance mismatches, cable loss, directional coupler loss, compact
anechoic chamber effects (3 m) including loading of the antenna, the allowed
6 dB field variation and any other effects.

Richard Woods
Sensormatic Electronics
Tyco International


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