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What is an antenna factor used for?

  • A.Converting a receiver voltage into an incident field strength
  • B.Converting an antenna gain from dBi into dBd
  • C.Correcting a measured pattern for the source antenna's own pattern
  • D.Relating the antenna's physical size to its effective aperture

Answer: A

Antenna factor, in decibels per metre, is added to the receiver reading in decibels above a microvolt to give the field strength in decibels above a microvolt per metre. It is on the calibration certificate of every measurement antenna and varies with frequency. Gain conversion, pattern correction and aperture relations are separate calculations. A single calibrated factor that turns an instrument reading into a physical quantity is what makes a measurement traceable.

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