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 The IEC 318 Ear Simulator Type RA0039 is an ear simulator with an input impedance closely resembling that of an average human ear. When the RA0039 is coupled to a sound source, the impedance will load the sound source similar to the loading caused by the human ear.
The RA0039 meets the requirements of IEC 60318-1:1998 Electroacoustics - "Simulators of human head and ear - Part 1: Ear simulator for the calibration of supra-aural earphones".
The RA0039 is measured and calibrated according to the ITU-T Recommendation P.57 (08/96) ”Series P: Telephone transmission quality, Objective measuring apparatus: Artificial ears”.
The RA0039 is also part of the G.R.A.S. Artificial Ears Type 43AA and Type 43AD.
Download PDF Data Sheet: pd_RA0039_ver_03_05_07.PDF.
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Related Products:
RA0045
Type 43AE
Type 43AG
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